Home / 387,288.27-534,507.99-217,522.41

Finding the Fourth Proportional to 387,288.27, 534,507.99 and 217,522.41

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Solution

The fourth proportional to 387,288.27, 534,507.99 and 217,522.41 is: 300,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,288.27 : 534,507.99 = 217,522.41 : x
  2. Step 2: Convert to fraction form
    387,288.27/534,507.99 = 217,522.41/x
  3. Step 3: Cross multiply
    387,288.27x = 534,507.99 × 217,522.41
  4. Step 4: Simplify right side
    387,288.27x = 116,267,466,149.06
  5. Step 5: Solve for x
    x = 116,267,466,149.06/387,288.27
  6. Step 6: Final answer
    x = 300,209.11

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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.