Home / 387,312.27-534,592.43-217,601.07

Finding the Fourth Proportional to 387,312.27, 534,592.43 and 217,601.07

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Solution

The fourth proportional to 387,312.27, 534,592.43 and 217,601.07 is: 300,346.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,312.27 : 534,592.43 = 217,601.07 : x
  2. Step 2: Convert to fraction form
    387,312.27/534,592.43 = 217,601.07/x
  3. Step 3: Cross multiply
    387,312.27x = 534,592.43 × 217,601.07
  4. Step 4: Simplify right side
    387,312.27x = 116,327,884,781.90
  5. Step 5: Solve for x
    x = 116,327,884,781.90/387,312.27
  6. Step 6: Final answer
    x = 300,346.50

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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.