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Finding the Fourth Proportional to 220,454.16, 330,486.96 and 87,427.80

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Solution

The fourth proportional to 220,454.16, 330,486.96 and 87,427.80 is: 131,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,454.16 : 330,486.96 = 87,427.80 : x
  2. Step 2: Convert to fraction form
    220,454.16/330,486.96 = 87,427.80/x
  3. Step 3: Cross multiply
    220,454.16x = 330,486.96 × 87,427.80
  4. Step 4: Simplify right side
    220,454.16x = 28,893,747,841.49
  5. Step 5: Solve for x
    x = 28,893,747,841.49/220,454.16
  6. Step 6: Final answer
    x = 131,064.65

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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.