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Finding the Fourth Proportional to 225,003.60, 310,505.25 and 123,029.52

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Solution

The fourth proportional to 225,003.60, 310,505.25 and 123,029.52 is: 169,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,003.60 : 310,505.25 = 123,029.52 : x
  2. Step 2: Convert to fraction form
    225,003.60/310,505.25 = 123,029.52/x
  3. Step 3: Cross multiply
    225,003.60x = 310,505.25 × 123,029.52
  4. Step 4: Simplify right side
    225,003.60x = 38,201,311,864.98
  5. Step 5: Solve for x
    x = 38,201,311,864.98/225,003.60
  6. Step 6: Final answer
    x = 169,780.89

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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.