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Finding the Fourth Proportional to 279,600.87, 385,860.12 and 158,753.41

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Solution

The fourth proportional to 279,600.87, 385,860.12 and 158,753.41 is: 219,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,600.87 : 385,860.12 = 158,753.41 : x
  2. Step 2: Convert to fraction form
    279,600.87/385,860.12 = 158,753.41/x
  3. Step 3: Cross multiply
    279,600.87x = 385,860.12 × 158,753.41
  4. Step 4: Simplify right side
    279,600.87x = 61,256,609,833.01
  5. Step 5: Solve for x
    x = 61,256,609,833.01/279,600.87
  6. Step 6: Final answer
    x = 219,085.91

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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.