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Finding the Fourth Proportional to 317,236.79, 437,891.45 and 283,606.54

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Solution

The fourth proportional to 317,236.79, 437,891.45 and 283,606.54 is: 391,470.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,236.79 : 437,891.45 = 283,606.54 : x
  2. Step 2: Convert to fraction form
    317,236.79/437,891.45 = 283,606.54/x
  3. Step 3: Cross multiply
    317,236.79x = 437,891.45 × 283,606.54
  4. Step 4: Simplify right side
    317,236.79x = 124,188,878,644.37
  5. Step 5: Solve for x
    x = 124,188,878,644.37/317,236.79
  6. Step 6: Final answer
    x = 391,470.61

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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.