Home / 257,535.24-386,351.30-103,672.98

Finding the Fourth Proportional to 257,535.24, 386,351.30 and 103,672.98

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Solution

The fourth proportional to 257,535.24, 386,351.30 and 103,672.98 is: 155,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,535.24 : 386,351.30 = 103,672.98 : x
  2. Step 2: Convert to fraction form
    257,535.24/386,351.30 = 103,672.98/x
  3. Step 3: Cross multiply
    257,535.24x = 386,351.30 × 103,672.98
  4. Step 4: Simplify right side
    257,535.24x = 40,054,190,597.87
  5. Step 5: Solve for x
    x = 40,054,190,597.87/257,535.24
  6. Step 6: Final answer
    x = 155,528.97

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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.