Home / 279,116.92-385,173.12-158,269.24

Finding the Fourth Proportional to 279,116.92, 385,173.12 and 158,269.24

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Solution

The fourth proportional to 279,116.92, 385,173.12 and 158,269.24 is: 218,406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,116.92 : 385,173.12 = 158,269.24 : x
  2. Step 2: Convert to fraction form
    279,116.92/385,173.12 = 158,269.24/x
  3. Step 3: Cross multiply
    279,116.92x = 385,173.12 × 158,269.24
  4. Step 4: Simplify right side
    279,116.92x = 60,961,056,970.83
  5. Step 5: Solve for x
    x = 60,961,056,970.83/279,116.92
  6. Step 6: Final answer
    x = 218,406.88

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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.