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Finding the Fourth Proportional to 225,337.80, 310,965.68 and 123,362.44

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Solution

The fourth proportional to 225,337.80, 310,965.68 and 123,362.44 is: 170,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,337.80 : 310,965.68 = 123,362.44 : x
  2. Step 2: Convert to fraction form
    225,337.80/310,965.68 = 123,362.44/x
  3. Step 3: Cross multiply
    225,337.80x = 310,965.68 × 123,362.44
  4. Step 4: Simplify right side
    225,337.80x = 38,361,484,572.05
  5. Step 5: Solve for x
    x = 38,361,484,572.05/225,337.80
  6. Step 6: Final answer
    x = 170,239.90

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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.