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Finding the Fourth Proportional to 261,652.80, 393,062.40 and 251,025.60

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Solution

The fourth proportional to 261,652.80, 393,062.40 and 251,025.60 is: 377,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,652.80 : 393,062.40 = 251,025.60 : x
  2. Step 2: Convert to fraction form
    261,652.80/393,062.40 = 251,025.60/x
  3. Step 3: Cross multiply
    261,652.80x = 393,062.40 × 251,025.60
  4. Step 4: Simplify right side
    261,652.80x = 98,668,724,797.44
  5. Step 5: Solve for x
    x = 98,668,724,797.44/261,652.80
  6. Step 6: Final answer
    x = 377,097.91

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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.