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Finding the Fourth Proportional to 225,235.97, 310,816.30 and 123,258.86

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Solution

The fourth proportional to 225,235.97, 310,816.30 and 123,258.86 is: 170,092.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,235.97 : 310,816.30 = 123,258.86 : x
  2. Step 2: Convert to fraction form
    225,235.97/310,816.30 = 123,258.86/x
  3. Step 3: Cross multiply
    225,235.97x = 310,816.30 × 123,258.86
  4. Step 4: Simplify right side
    225,235.97x = 38,310,862,807.42
  5. Step 5: Solve for x
    x = 38,310,862,807.42/225,235.97
  6. Step 6: Final answer
    x = 170,092.12

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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.