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Finding the Fourth Proportional to 279,352.44, 385,515.11 and 158,498.82

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Solution

The fourth proportional to 279,352.44, 385,515.11 and 158,498.82 is: 218,733.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,352.44 : 385,515.11 = 158,498.82 : x
  2. Step 2: Convert to fraction form
    279,352.44/385,515.11 = 158,498.82/x
  3. Step 3: Cross multiply
    279,352.44x = 385,515.11 × 158,498.82
  4. Step 4: Simplify right side
    279,352.44x = 61,103,690,423.42
  5. Step 5: Solve for x
    x = 61,103,690,423.42/279,352.44
  6. Step 6: Final answer
    x = 218,733.33

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1.5x scale

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.