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Finding the Fourth Proportional to 498,427.20, 747,813.60 and 218,145.60

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Solution

The fourth proportional to 498,427.20, 747,813.60 and 218,145.60 is: 327,294.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,427.20 : 747,813.60 = 218,145.60 : x
  2. Step 2: Convert to fraction form
    498,427.20/747,813.60 = 218,145.60/x
  3. Step 3: Cross multiply
    498,427.20x = 747,813.60 × 218,145.60
  4. Step 4: Simplify right side
    498,427.20x = 163,132,246,460.16
  5. Step 5: Solve for x
    x = 163,132,246,460.16/498,427.20
  6. Step 6: Final answer
    x = 327,294.03

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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.