Home / 279,516.06-385,739.10-152,198.64

Finding the Fourth Proportional to 279,516.06, 385,739.10 and 152,198.64

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Solution

The fourth proportional to 279,516.06, 385,739.10 and 152,198.64 is: 210,037.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,516.06 : 385,739.10 = 152,198.64 : x
  2. Step 2: Convert to fraction form
    279,516.06/385,739.10 = 152,198.64/x
  3. Step 3: Cross multiply
    279,516.06x = 385,739.10 × 152,198.64
  4. Step 4: Simplify right side
    279,516.06x = 58,708,966,414.82
  5. Step 5: Solve for x
    x = 58,708,966,414.82/279,516.06
  6. Step 6: Final answer
    x = 210,037.90

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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.