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Finding the Fourth Proportional to 279,609.46, 385,857.72 and 158,754.22

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Solution

The fourth proportional to 279,609.46, 385,857.72 and 158,754.22 is: 219,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,609.46 : 385,857.72 = 158,754.22 : x
  2. Step 2: Convert to fraction form
    279,609.46/385,857.72 = 158,754.22/x
  3. Step 3: Cross multiply
    279,609.46x = 385,857.72 × 158,754.22
  4. Step 4: Simplify right side
    279,609.46x = 61,256,541,369.58
  5. Step 5: Solve for x
    x = 61,256,541,369.58/279,609.46
  6. Step 6: Final answer
    x = 219,078.93

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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.