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Finding the Fourth Proportional to 372,710.60, 559,138.80 and 159,478.10

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Solution

The fourth proportional to 372,710.60, 559,138.80 and 159,478.10 is: 239,248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,710.60 : 559,138.80 = 159,478.10 : x
  2. Step 2: Convert to fraction form
    372,710.60/559,138.80 = 159,478.10/x
  3. Step 3: Cross multiply
    372,710.60x = 559,138.80 × 159,478.10
  4. Step 4: Simplify right side
    372,710.60x = 89,170,393,460.28
  5. Step 5: Solve for x
    x = 89,170,393,460.28/372,710.60
  6. Step 6: Final answer
    x = 239,248.34

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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.