Home / 320,932.88-442,901.21-177,692.92

Finding the Fourth Proportional to 320,932.88, 442,901.21 and 177,692.92

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Solution

The fourth proportional to 320,932.88, 442,901.21 and 177,692.92 is: 245,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,932.88 : 442,901.21 = 177,692.92 : x
  2. Step 2: Convert to fraction form
    320,932.88/442,901.21 = 177,692.92/x
  3. Step 3: Cross multiply
    320,932.88x = 442,901.21 × 177,692.92
  4. Step 4: Simplify right side
    320,932.88x = 78,700,409,276.43
  5. Step 5: Solve for x
    x = 78,700,409,276.43/320,932.88
  6. Step 6: Final answer
    x = 245,223.89

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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.