Home / 321,221.45-443,267.03-177,972.95

Finding the Fourth Proportional to 321,221.45, 443,267.03 and 177,972.95

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Solution

The fourth proportional to 321,221.45, 443,267.03 and 177,972.95 is: 245,592.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,221.45 : 443,267.03 = 177,972.95 : x
  2. Step 2: Convert to fraction form
    321,221.45/443,267.03 = 177,972.95/x
  3. Step 3: Cross multiply
    321,221.45x = 443,267.03 × 177,972.95
  4. Step 4: Simplify right side
    321,221.45x = 78,889,537,860.64
  5. Step 5: Solve for x
    x = 78,889,537,860.64/321,221.45
  6. Step 6: Final answer
    x = 245,592.38

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1.5x scale

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.