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Finding the Fourth Proportional to 225,073.60, 310,589.04 and 123,078.76

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Solution

The fourth proportional to 225,073.60, 310,589.04 and 123,078.76 is: 169,841.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,073.60 : 310,589.04 = 123,078.76 : x
  2. Step 2: Convert to fraction form
    225,073.60/310,589.04 = 123,078.76/x
  3. Step 3: Cross multiply
    225,073.60x = 310,589.04 × 123,078.76
  4. Step 4: Simplify right side
    225,073.60x = 38,226,913,912.79
  5. Step 5: Solve for x
    x = 38,226,913,912.79/225,073.60
  6. Step 6: Final answer
    x = 169,841.84

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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.