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Finding the Fourth Proportional to 486,028.06, 729,064.18 and 149,044.06

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Solution

The fourth proportional to 486,028.06, 729,064.18 and 149,044.06 is: 223,572.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,028.06 : 729,064.18 = 149,044.06 : x
  2. Step 2: Convert to fraction form
    486,028.06/729,064.18 = 149,044.06/x
  3. Step 3: Cross multiply
    486,028.06x = 729,064.18 × 149,044.06
  4. Step 4: Simplify right side
    486,028.06x = 108,662,685,387.77
  5. Step 5: Solve for x
    x = 108,662,685,387.77/486,028.06
  6. Step 6: Final answer
    x = 223,572.86

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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.