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Finding the Fourth Proportional to 229,162.40, 316,239.34 and 127,181.92

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Solution

The fourth proportional to 229,162.40, 316,239.34 and 127,181.92 is: 175,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,162.40 : 316,239.34 = 127,181.92 : x
  2. Step 2: Convert to fraction form
    229,162.40/316,239.34 = 127,181.92/x
  3. Step 3: Cross multiply
    229,162.40x = 316,239.34 × 127,181.92
  4. Step 4: Simplify right side
    229,162.40x = 40,219,926,440.73
  5. Step 5: Solve for x
    x = 40,219,926,440.73/229,162.40
  6. Step 6: Final answer
    x = 175,508.40

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1.5x scale

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.