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Finding the Fourth Proportional to 342,182.77, 472,215.29 and 189,231.25

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Solution

The fourth proportional to 342,182.77, 472,215.29 and 189,231.25 is: 261,140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,182.77 : 472,215.29 = 189,231.25 : x
  2. Step 2: Convert to fraction form
    342,182.77/472,215.29 = 189,231.25/x
  3. Step 3: Cross multiply
    342,182.77x = 472,215.29 × 189,231.25
  4. Step 4: Simplify right side
    342,182.77x = 89,357,889,595.81
  5. Step 5: Solve for x
    x = 89,357,889,595.81/342,182.77
  6. Step 6: Final answer
    x = 261,140.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.