Home / 905,153.84-1,357,730.72-231,236.61

Finding the Fourth Proportional to 905,153.84, 1,357,730.72 and 231,236.61

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Solution

The fourth proportional to 905,153.84, 1,357,730.72 and 231,236.61 is: 346,854.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,153.84 : 1,357,730.72 = 231,236.61 : x
  2. Step 2: Convert to fraction form
    905,153.84/1,357,730.72 = 231,236.61/x
  3. Step 3: Cross multiply
    905,153.84x = 1,357,730.72 × 231,236.61
  4. Step 4: Simplify right side
    905,153.84x = 313,957,047,829.48
  5. Step 5: Solve for x
    x = 313,957,047,829.48/905,153.84
  6. Step 6: Final answer
    x = 346,854.91

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.