Home / 387,532.76-534,845.32-217,766.90

Finding the Fourth Proportional to 387,532.76, 534,845.32 and 217,766.90

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Solution

The fourth proportional to 387,532.76, 534,845.32 and 217,766.90 is: 300,546.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,532.76 : 534,845.32 = 217,766.90 : x
  2. Step 2: Convert to fraction form
    387,532.76/534,845.32 = 217,766.90/x
  3. Step 3: Cross multiply
    387,532.76x = 534,845.32 × 217,766.90
  4. Step 4: Simplify right side
    387,532.76x = 116,471,607,315.91
  5. Step 5: Solve for x
    x = 116,471,607,315.91/387,532.76
  6. Step 6: Final answer
    x = 300,546.48

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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.