Home / 387,092.14-534,168.93-215,021.20

Finding the Fourth Proportional to 387,092.14, 534,168.93 and 215,021.20

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Solution

The fourth proportional to 387,092.14, 534,168.93 and 215,021.20 is: 296,719.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,092.14 : 534,168.93 = 215,021.20 : x
  2. Step 2: Convert to fraction form
    387,092.14/534,168.93 = 215,021.20/x
  3. Step 3: Cross multiply
    387,092.14x = 534,168.93 × 215,021.20
  4. Step 4: Simplify right side
    387,092.14x = 114,857,644,331.32
  5. Step 5: Solve for x
    x = 114,857,644,331.32/387,092.14
  6. Step 6: Final answer
    x = 296,719.13

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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.