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Finding the Fourth Proportional to 223,732.71, 308,751.03 and 123,130.71

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Solution

The fourth proportional to 223,732.71, 308,751.03 and 123,130.71 is: 169,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,732.71 : 308,751.03 = 123,130.71 : x
  2. Step 2: Convert to fraction form
    223,732.71/308,751.03 = 123,130.71/x
  3. Step 3: Cross multiply
    223,732.71x = 308,751.03 × 123,130.71
  4. Step 4: Simplify right side
    223,732.71x = 38,016,733,537.13
  5. Step 5: Solve for x
    x = 38,016,733,537.13/223,732.71
  6. Step 6: Final answer
    x = 169,920.32

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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.