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Finding the Fourth Proportional to 229,202.44, 316,304.82 and 128,607.88

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Solution

The fourth proportional to 229,202.44, 316,304.82 and 128,607.88 is: 177,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,202.44 : 316,304.82 = 128,607.88 : x
  2. Step 2: Convert to fraction form
    229,202.44/316,304.82 = 128,607.88/x
  3. Step 3: Cross multiply
    229,202.44x = 316,304.82 × 128,607.88
  4. Step 4: Simplify right side
    229,202.44x = 40,679,292,333.98
  5. Step 5: Solve for x
    x = 40,679,292,333.98/229,202.44
  6. Step 6: Final answer
    x = 177,481.93

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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.