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Finding the Fourth Proportional to 207,304.72, 310,956.02 and 80,957.79

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Solution

The fourth proportional to 207,304.72, 310,956.02 and 80,957.79 is: 121,436.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,304.72 : 310,956.02 = 80,957.79 : x
  2. Step 2: Convert to fraction form
    207,304.72/310,956.02 = 80,957.79/x
  3. Step 3: Cross multiply
    207,304.72x = 310,956.02 × 80,957.79
  4. Step 4: Simplify right side
    207,304.72x = 25,174,313,146.18
  5. Step 5: Solve for x
    x = 25,174,313,146.18/207,304.72
  6. Step 6: Final answer
    x = 121,436.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.