Home / 257,548.55-386,562.04-131,283.66

Finding the Fourth Proportional to 257,548.55, 386,562.04 and 131,283.66

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Solution

The fourth proportional to 257,548.55, 386,562.04 and 131,283.66 is: 197,047.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,548.55 : 386,562.04 = 131,283.66 : x
  2. Step 2: Convert to fraction form
    257,548.55/386,562.04 = 131,283.66/x
  3. Step 3: Cross multiply
    257,548.55x = 386,562.04 × 131,283.66
  4. Step 4: Simplify right side
    257,548.55x = 50,749,279,100.06
  5. Step 5: Solve for x
    x = 50,749,279,100.06/257,548.55
  6. Step 6: Final answer
    x = 197,047.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.