Home / 257,539.24-386,357.30-103,676.98

Finding the Fourth Proportional to 257,539.24, 386,357.30 and 103,676.98

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Solution

The fourth proportional to 257,539.24, 386,357.30 and 103,676.98 is: 155,534.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,539.24 : 386,357.30 = 103,676.98 : x
  2. Step 2: Convert to fraction form
    257,539.24/386,357.30 = 103,676.98/x
  3. Step 3: Cross multiply
    257,539.24x = 386,357.30 × 103,676.98
  4. Step 4: Simplify right side
    257,539.24x = 40,056,358,064.95
  5. Step 5: Solve for x
    x = 40,056,358,064.95/257,539.24
  6. Step 6: Final answer
    x = 155,534.97

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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.