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Finding the Fourth Proportional to 225,213.80, 310,798.68 and 123,248.12

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Solution

The fourth proportional to 225,213.80, 310,798.68 and 123,248.12 is: 170,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,213.80 : 310,798.68 = 123,248.12 : x
  2. Step 2: Convert to fraction form
    225,213.80/310,798.68 = 123,248.12/x
  3. Step 3: Cross multiply
    225,213.80x = 310,798.68 × 123,248.12
  4. Step 4: Simplify right side
    225,213.80x = 38,305,353,008.48
  5. Step 5: Solve for x
    x = 38,305,353,008.48/225,213.80
  6. Step 6: Final answer
    x = 170,084.40

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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.