Home / 387,488.95-581,244.33-107,006.20

Finding the Fourth Proportional to 387,488.95, 581,244.33 and 107,006.20

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Solution

The fourth proportional to 387,488.95, 581,244.33 and 107,006.20 is: 160,512.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,488.95 : 581,244.33 = 107,006.20 : x
  2. Step 2: Convert to fraction form
    387,488.95/581,244.33 = 107,006.20/x
  3. Step 3: Cross multiply
    387,488.95x = 581,244.33 × 107,006.20
  4. Step 4: Simplify right side
    387,488.95x = 62,196,747,024.85
  5. Step 5: Solve for x
    x = 62,196,747,024.85/387,488.95
  6. Step 6: Final answer
    x = 160,512.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.