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Finding the Fourth Proportional to 407,382.32, 610,188.96 and 249,131

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Solution

The fourth proportional to 407,382.32, 610,188.96 and 249,131 is: 373,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,382.32 : 610,188.96 = 249,131 : x
  2. Step 2: Convert to fraction form
    407,382.32/610,188.96 = 249,131/x
  3. Step 3: Cross multiply
    407,382.32x = 610,188.96 × 249,131
  4. Step 4: Simplify right side
    407,382.32x = 152,016,985,793.76
  5. Step 5: Solve for x
    x = 152,016,985,793.76/407,382.32
  6. Step 6: Final answer
    x = 373,155.58

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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.