Home / 421,126.11-581,154.31-230,139.52

Finding the Fourth Proportional to 421,126.11, 581,154.31 and 230,139.52

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Solution

The fourth proportional to 421,126.11, 581,154.31 and 230,139.52 is: 317,592.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,126.11 : 581,154.31 = 230,139.52 : x
  2. Step 2: Convert to fraction form
    421,126.11/581,154.31 = 230,139.52/x
  3. Step 3: Cross multiply
    421,126.11x = 581,154.31 × 230,139.52
  4. Step 4: Simplify right side
    421,126.11x = 133,746,573,949.33
  5. Step 5: Solve for x
    x = 133,746,573,949.33/421,126.11
  6. Step 6: Final answer
    x = 317,592.69

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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.