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Finding the Fourth Proportional to 372,712.60, 559,141.80 and 159,480.10

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Solution

The fourth proportional to 372,712.60, 559,141.80 and 159,480.10 is: 239,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,712.60 : 559,141.80 = 159,480.10 : x
  2. Step 2: Convert to fraction form
    372,712.60/559,141.80 = 159,480.10/x
  3. Step 3: Cross multiply
    372,712.60x = 559,141.80 × 159,480.10
  4. Step 4: Simplify right side
    372,712.60x = 89,171,990,178.18
  5. Step 5: Solve for x
    x = 89,171,990,178.18/372,712.60
  6. Step 6: Final answer
    x = 239,251.34

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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.