Home / 387,170.11-534,237.01-217,371.43

Finding the Fourth Proportional to 387,170.11, 534,237.01 and 217,371.43

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Solution

The fourth proportional to 387,170.11, 534,237.01 and 217,371.43 is: 299,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,170.11 : 534,237.01 = 217,371.43 : x
  2. Step 2: Convert to fraction form
    387,170.11/534,237.01 = 217,371.43/x
  3. Step 3: Cross multiply
    387,170.11x = 534,237.01 × 217,371.43
  4. Step 4: Simplify right side
    387,170.11x = 116,127,862,822.62
  5. Step 5: Solve for x
    x = 116,127,862,822.62/387,170.11
  6. Step 6: Final answer
    x = 299,940.16

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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.