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Finding the Fourth Proportional to 229,440.60, 316,631.76 and 127,472.64

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Solution

The fourth proportional to 229,440.60, 316,631.76 and 127,472.64 is: 175,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,440.60 : 316,631.76 = 127,472.64 : x
  2. Step 2: Convert to fraction form
    229,440.60/316,631.76 = 127,472.64/x
  3. Step 3: Cross multiply
    229,440.60x = 316,631.76 × 127,472.64
  4. Step 4: Simplify right side
    229,440.60x = 40,361,886,355.05
  5. Step 5: Solve for x
    x = 40,361,886,355.05/229,440.60
  6. Step 6: Final answer
    x = 175,914.32

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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.