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Finding the Fourth Proportional to 207,094.13, 310,594.72 and 80,691

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Solution

The fourth proportional to 207,094.13, 310,594.72 and 80,691 is: 121,018.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,094.13 : 310,594.72 = 80,691 : x
  2. Step 2: Convert to fraction form
    207,094.13/310,594.72 = 80,691/x
  3. Step 3: Cross multiply
    207,094.13x = 310,594.72 × 80,691
  4. Step 4: Simplify right side
    207,094.13x = 25,062,198,551.52
  5. Step 5: Solve for x
    x = 25,062,198,551.52/207,094.13
  6. Step 6: Final answer
    x = 121,018.39

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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.