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Finding the Fourth Proportional to 251,921.60, 377,104.80 and 146,427.20

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Solution

The fourth proportional to 251,921.60, 377,104.80 and 146,427.20 is: 219,188.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,921.60 : 377,104.80 = 146,427.20 : x
  2. Step 2: Convert to fraction form
    251,921.60/377,104.80 = 146,427.20/x
  3. Step 3: Cross multiply
    251,921.60x = 377,104.80 × 146,427.20
  4. Step 4: Simplify right side
    251,921.60x = 55,218,399,970.56
  5. Step 5: Solve for x
    x = 55,218,399,970.56/251,921.60
  6. Step 6: Final answer
    x = 219,188.83

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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.