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Finding the Fourth Proportional to 251,043.60, 376,446.60 and 145,894.80

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Solution

The fourth proportional to 251,043.60, 376,446.60 and 145,894.80 is: 218,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,043.60 : 376,446.60 = 145,894.80 : x
  2. Step 2: Convert to fraction form
    251,043.60/376,446.60 = 145,894.80/x
  3. Step 3: Cross multiply
    251,043.60x = 376,446.60 × 145,894.80
  4. Step 4: Simplify right side
    251,043.60x = 54,921,601,417.68
  5. Step 5: Solve for x
    x = 54,921,601,417.68/251,043.60
  6. Step 6: Final answer
    x = 218,773.16

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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.