Home / 260,329.29-390,502.52-89,549.28

Finding the Fourth Proportional to 260,329.29, 390,502.52 and 89,549.28

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Solution

The fourth proportional to 260,329.29, 390,502.52 and 89,549.28 is: 134,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,329.29 : 390,502.52 = 89,549.28 : x
  2. Step 2: Convert to fraction form
    260,329.29/390,502.52 = 89,549.28/x
  3. Step 3: Cross multiply
    260,329.29x = 390,502.52 × 89,549.28
  4. Step 4: Simplify right side
    260,329.29x = 34,969,220,032.70
  5. Step 5: Solve for x
    x = 34,969,220,032.70/260,329.29
  6. Step 6: Final answer
    x = 134,326.88

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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.