Home / 320,261.44-480,417.12-187,155.52

Finding the Fourth Proportional to 320,261.44, 480,417.12 and 187,155.52

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Solution

The fourth proportional to 320,261.44, 480,417.12 and 187,155.52 is: 280,747.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,261.44 : 480,417.12 = 187,155.52 : x
  2. Step 2: Convert to fraction form
    320,261.44/480,417.12 = 187,155.52/x
  3. Step 3: Cross multiply
    320,261.44x = 480,417.12 × 187,155.52
  4. Step 4: Simplify right side
    320,261.44x = 89,912,715,910.50
  5. Step 5: Solve for x
    x = 89,912,715,910.50/320,261.44
  6. Step 6: Final answer
    x = 280,747.87

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1.5x scale

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.