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Finding the Fourth Proportional to 207,088.95, 310,797.45 and 80,789.70

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Solution

The fourth proportional to 207,088.95, 310,797.45 and 80,789.70 is: 121,248.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,088.95 : 310,797.45 = 80,789.70 : x
  2. Step 2: Convert to fraction form
    207,088.95/310,797.45 = 80,789.70/x
  3. Step 3: Cross multiply
    207,088.95x = 310,797.45 × 80,789.70
  4. Step 4: Simplify right side
    207,088.95x = 25,109,232,746.27
  5. Step 5: Solve for x
    x = 25,109,232,746.27/207,088.95
  6. Step 6: Final answer
    x = 121,248.54

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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.