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Finding the Fourth Proportional to 486,266.20, 729,326.34 and 153,799

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Solution

The fourth proportional to 486,266.20, 729,326.34 and 153,799 is: 230,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,266.20 : 729,326.34 = 153,799 : x
  2. Step 2: Convert to fraction form
    486,266.20/729,326.34 = 153,799/x
  3. Step 3: Cross multiply
    486,266.20x = 729,326.34 × 153,799
  4. Step 4: Simplify right side
    486,266.20x = 112,169,661,765.66
  5. Step 5: Solve for x
    x = 112,169,661,765.66/486,266.20
  6. Step 6: Final answer
    x = 230,675.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.