Home / 257,275.20-386,340.48-173,573.85

Finding the Fourth Proportional to 257,275.20, 386,340.48 and 173,573.85

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Solution

The fourth proportional to 257,275.20, 386,340.48 and 173,573.85 is: 260,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,275.20 : 386,340.48 = 173,573.85 : x
  2. Step 2: Convert to fraction form
    257,275.20/386,340.48 = 173,573.85/x
  3. Step 3: Cross multiply
    257,275.20x = 386,340.48 × 173,573.85
  4. Step 4: Simplify right side
    257,275.20x = 67,058,604,524.45
  5. Step 5: Solve for x
    x = 67,058,604,524.45/257,275.20
  6. Step 6: Final answer
    x = 260,649.31

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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.