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Finding the Fourth Proportional to 488,480.40, 732,720.60 and 222,759.90

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Solution

The fourth proportional to 488,480.40, 732,720.60 and 222,759.90 is: 334,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,480.40 : 732,720.60 = 222,759.90 : x
  2. Step 2: Convert to fraction form
    488,480.40/732,720.60 = 222,759.90/x
  3. Step 3: Cross multiply
    488,480.40x = 732,720.60 × 222,759.90
  4. Step 4: Simplify right side
    488,480.40x = 163,220,767,583.94
  5. Step 5: Solve for x
    x = 163,220,767,583.94/488,480.40
  6. Step 6: Final answer
    x = 334,139.85

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Similar ratio
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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.