Home / 257,367.16-386,050.74-79,826.50

Finding the Fourth Proportional to 257,367.16, 386,050.74 and 79,826.50

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Solution

The fourth proportional to 257,367.16, 386,050.74 and 79,826.50 is: 119,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,367.16 : 386,050.74 = 79,826.50 : x
  2. Step 2: Convert to fraction form
    257,367.16/386,050.74 = 79,826.50/x
  3. Step 3: Cross multiply
    257,367.16x = 386,050.74 × 79,826.50
  4. Step 4: Simplify right side
    257,367.16x = 30,817,079,396.61
  5. Step 5: Solve for x
    x = 30,817,079,396.61/257,367.16
  6. Step 6: Final answer
    x = 119,739.75

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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.