Home / 279,816.42-386,133.57-158,954.70

Finding the Fourth Proportional to 279,816.42, 386,133.57 and 158,954.70

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Solution

The fourth proportional to 279,816.42, 386,133.57 and 158,954.70 is: 219,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,816.42 : 386,133.57 = 158,954.70 : x
  2. Step 2: Convert to fraction form
    279,816.42/386,133.57 = 158,954.70/x
  3. Step 3: Cross multiply
    279,816.42x = 386,133.57 × 158,954.70
  4. Step 4: Simplify right side
    279,816.42x = 61,377,745,779.28
  5. Step 5: Solve for x
    x = 61,377,745,779.28/279,816.42
  6. Step 6: Final answer
    x = 219,350.05

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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.