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Finding the Fourth Proportional to 279,129.60, 418,233.60 and 237,657.60

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Solution

The fourth proportional to 279,129.60, 418,233.60 and 237,657.60 is: 356,094.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,129.60 : 418,233.60 = 237,657.60 : x
  2. Step 2: Convert to fraction form
    279,129.60/418,233.60 = 237,657.60/x
  3. Step 3: Cross multiply
    279,129.60x = 418,233.60 × 237,657.60
  4. Step 4: Simplify right side
    279,129.60x = 99,396,393,615.36
  5. Step 5: Solve for x
    x = 99,396,393,615.36/279,129.60
  6. Step 6: Final answer
    x = 356,094.06

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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.