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Finding the Fourth Proportional to 438,139.56, 604,726.26 and 276,891.72

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Solution

The fourth proportional to 438,139.56, 604,726.26 and 276,891.72 is: 382,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,139.56 : 604,726.26 = 276,891.72 : x
  2. Step 2: Convert to fraction form
    438,139.56/604,726.26 = 276,891.72/x
  3. Step 3: Cross multiply
    438,139.56x = 604,726.26 × 276,891.72
  4. Step 4: Simplify right side
    438,139.56x = 167,443,694,260.57
  5. Step 5: Solve for x
    x = 167,443,694,260.57/438,139.56
  6. Step 6: Final answer
    x = 382,169.77

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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.