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Finding the Fourth Proportional to 225,222.88, 310,807.61 and 123,248.36

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Solution

The fourth proportional to 225,222.88, 310,807.61 and 123,248.36 is: 170,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,222.88 : 310,807.61 = 123,248.36 : x
  2. Step 2: Convert to fraction form
    225,222.88/310,807.61 = 123,248.36/x
  3. Step 3: Cross multiply
    225,222.88x = 310,807.61 × 123,248.36
  4. Step 4: Simplify right side
    225,222.88x = 38,306,528,368.80
  5. Step 5: Solve for x
    x = 38,306,528,368.80/225,222.88
  6. Step 6: Final answer
    x = 170,082.76

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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.