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Finding the Fourth Proportional to 229,872.96, 317,238.96 and 127,921.17

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Solution

The fourth proportional to 229,872.96, 317,238.96 and 127,921.17 is: 176,539.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,872.96 : 317,238.96 = 127,921.17 : x
  2. Step 2: Convert to fraction form
    229,872.96/317,238.96 = 127,921.17/x
  3. Step 3: Cross multiply
    229,872.96x = 317,238.96 × 127,921.17
  4. Step 4: Simplify right side
    229,872.96x = 40,581,578,932.78
  5. Step 5: Solve for x
    x = 40,581,578,932.78/229,872.96
  6. Step 6: Final answer
    x = 176,539.16

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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.