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Finding the Fourth Proportional to 283,740.60, 425,610.90 and 238,121.40

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Solution

The fourth proportional to 283,740.60, 425,610.90 and 238,121.40 is: 357,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,740.60 : 425,610.90 = 238,121.40 : x
  2. Step 2: Convert to fraction form
    283,740.60/425,610.90 = 238,121.40/x
  3. Step 3: Cross multiply
    283,740.60x = 425,610.90 × 238,121.40
  4. Step 4: Simplify right side
    283,740.60x = 101,347,063,363.26
  5. Step 5: Solve for x
    x = 101,347,063,363.26/283,740.60
  6. Step 6: Final answer
    x = 357,182.10

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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.