Home / 387,680.10-534,920.07-226,503.96

Finding the Fourth Proportional to 387,680.10, 534,920.07 and 226,503.96

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Solution

The fourth proportional to 387,680.10, 534,920.07 and 226,503.96 is: 312,529.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,680.10 : 534,920.07 = 226,503.96 : x
  2. Step 2: Convert to fraction form
    387,680.10/534,920.07 = 226,503.96/x
  3. Step 3: Cross multiply
    387,680.10x = 534,920.07 × 226,503.96
  4. Step 4: Simplify right side
    387,680.10x = 121,161,514,138.48
  5. Step 5: Solve for x
    x = 121,161,514,138.48/387,680.10
  6. Step 6: Final answer
    x = 312,529.62

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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.