Home / 247,930.65-371,948.18-129,570.21

Finding the Fourth Proportional to 247,930.65, 371,948.18 and 129,570.21

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Solution

The fourth proportional to 247,930.65, 371,948.18 and 129,570.21 is: 194,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,930.65 : 371,948.18 = 129,570.21 : x
  2. Step 2: Convert to fraction form
    247,930.65/371,948.18 = 129,570.21/x
  3. Step 3: Cross multiply
    247,930.65x = 371,948.18 × 129,570.21
  4. Step 4: Simplify right side
    247,930.65x = 48,193,403,143.87
  5. Step 5: Solve for x
    x = 48,193,403,143.87/247,930.65
  6. Step 6: Final answer
    x = 194,382.60

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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.