Home / 312,766.52-431,607.30-185,366.48

Finding the Fourth Proportional to 312,766.52, 431,607.30 and 185,366.48

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Solution

The fourth proportional to 312,766.52, 431,607.30 and 185,366.48 is: 255,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,766.52 : 431,607.30 = 185,366.48 : x
  2. Step 2: Convert to fraction form
    312,766.52/431,607.30 = 185,366.48/x
  3. Step 3: Cross multiply
    312,766.52x = 431,607.30 × 185,366.48
  4. Step 4: Simplify right side
    312,766.52x = 80,005,525,943.30
  5. Step 5: Solve for x
    x = 80,005,525,943.30/312,766.52
  6. Step 6: Final answer
    x = 255,799.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.