Home / 279,836.64-386,184.98-158,998.41

Finding the Fourth Proportional to 279,836.64, 386,184.98 and 158,998.41

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Solution

The fourth proportional to 279,836.64, 386,184.98 and 158,998.41 is: 219,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,836.64 : 386,184.98 = 158,998.41 : x
  2. Step 2: Convert to fraction form
    279,836.64/386,184.98 = 158,998.41/x
  3. Step 3: Cross multiply
    279,836.64x = 386,184.98 × 158,998.41
  4. Step 4: Simplify right side
    279,836.64x = 61,402,797,785.88
  5. Step 5: Solve for x
    x = 61,402,797,785.88/279,836.64
  6. Step 6: Final answer
    x = 219,423.72

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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.