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Finding the Fourth Proportional to 229,264.75, 316,414.52 and 128,662.75

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Solution

The fourth proportional to 229,264.75, 316,414.52 and 128,662.75 is: 177,570.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,264.75 : 316,414.52 = 128,662.75 : x
  2. Step 2: Convert to fraction form
    229,264.75/316,414.52 = 128,662.75/x
  3. Step 3: Cross multiply
    229,264.75x = 316,414.52 × 128,662.75
  4. Step 4: Simplify right side
    229,264.75x = 40,710,762,283.13
  5. Step 5: Solve for x
    x = 40,710,762,283.13/229,264.75
  6. Step 6: Final answer
    x = 177,570.96

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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.