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Finding the Fourth Proportional to 224,787.60, 310,276.64 and 138,773.68

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Solution

The fourth proportional to 224,787.60, 310,276.64 and 138,773.68 is: 191,550.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,787.60 : 310,276.64 = 138,773.68 : x
  2. Step 2: Convert to fraction form
    224,787.60/310,276.64 = 138,773.68/x
  3. Step 3: Cross multiply
    224,787.60x = 310,276.64 × 138,773.68
  4. Step 4: Simplify right side
    224,787.60x = 43,058,231,150.84
  5. Step 5: Solve for x
    x = 43,058,231,150.84/224,787.60
  6. Step 6: Final answer
    x = 191,550.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.