Home / 279,712.69-386,004.02-158,853.96

Finding the Fourth Proportional to 279,712.69, 386,004.02 and 158,853.96

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Solution

The fourth proportional to 279,712.69, 386,004.02 and 158,853.96 is: 219,218.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,712.69 : 386,004.02 = 158,853.96 : x
  2. Step 2: Convert to fraction form
    279,712.69/386,004.02 = 158,853.96/x
  3. Step 3: Cross multiply
    279,712.69x = 386,004.02 × 158,853.96
  4. Step 4: Simplify right side
    279,712.69x = 61,318,267,152.92
  5. Step 5: Solve for x
    x = 61,318,267,152.92/279,712.69
  6. Step 6: Final answer
    x = 219,218.75

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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.