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Finding the Fourth Proportional to 223,760.76, 308,790.52 and 123,158.76

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Solution

The fourth proportional to 223,760.76, 308,790.52 and 123,158.76 is: 169,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,760.76 : 308,790.52 = 123,158.76 : x
  2. Step 2: Convert to fraction form
    223,760.76/308,790.52 = 123,158.76/x
  3. Step 3: Cross multiply
    223,760.76x = 308,790.52 × 123,158.76
  4. Step 4: Simplify right side
    223,760.76x = 38,030,257,542.96
  5. Step 5: Solve for x
    x = 38,030,257,542.96/223,760.76
  6. Step 6: Final answer
    x = 169,959.46

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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.