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Finding the Fourth Proportional to 180,218.20, 270,330.90 and 47,090.20

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Solution

The fourth proportional to 180,218.20, 270,330.90 and 47,090.20 is: 70,636.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,218.20 : 270,330.90 = 47,090.20 : x
  2. Step 2: Convert to fraction form
    180,218.20/270,330.90 = 47,090.20/x
  3. Step 3: Cross multiply
    180,218.20x = 270,330.90 × 47,090.20
  4. Step 4: Simplify right side
    180,218.20x = 12,729,936,147.18
  5. Step 5: Solve for x
    x = 12,729,936,147.18/180,218.20
  6. Step 6: Final answer
    x = 70,636.24

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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.