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Finding the Fourth Proportional to 492,798.64, 739,244.64 and 137,812.60

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Solution

The fourth proportional to 492,798.64, 739,244.64 and 137,812.60 is: 206,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,798.64 : 739,244.64 = 137,812.60 : x
  2. Step 2: Convert to fraction form
    492,798.64/739,244.64 = 137,812.60/x
  3. Step 3: Cross multiply
    492,798.64x = 739,244.64 × 137,812.60
  4. Step 4: Simplify right side
    492,798.64x = 101,877,225,874.46
  5. Step 5: Solve for x
    x = 101,877,225,874.46/492,798.64
  6. Step 6: Final answer
    x = 206,731.95

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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.