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Finding the Fourth Proportional to 229,687.92, 316,941.12 and 134,125.20

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Solution

The fourth proportional to 229,687.92, 316,941.12 and 134,125.20 is: 185,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,687.92 : 316,941.12 = 134,125.20 : x
  2. Step 2: Convert to fraction form
    229,687.92/316,941.12 = 134,125.20/x
  3. Step 3: Cross multiply
    229,687.92x = 316,941.12 × 134,125.20
  4. Step 4: Simplify right side
    229,687.92x = 42,509,791,108.22
  5. Step 5: Solve for x
    x = 42,509,791,108.22/229,687.92
  6. Step 6: Final answer
    x = 185,076.30

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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.