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Finding the Fourth Proportional to 223,748.65, 308,805.68 and 125,642.89

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Solution

The fourth proportional to 223,748.65, 308,805.68 and 125,642.89 is: 173,405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,748.65 : 308,805.68 = 125,642.89 : x
  2. Step 2: Convert to fraction form
    223,748.65/308,805.68 = 125,642.89/x
  3. Step 3: Cross multiply
    223,748.65x = 308,805.68 × 125,642.89
  4. Step 4: Simplify right side
    223,748.65x = 38,799,238,083.62
  5. Step 5: Solve for x
    x = 38,799,238,083.62/223,748.65
  6. Step 6: Final answer
    x = 173,405.46

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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.