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Finding the Fourth Proportional to 202,048.20, 302,489.10 and 178,720.20

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Solution

The fourth proportional to 202,048.20, 302,489.10 and 178,720.20 is: 267,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,048.20 : 302,489.10 = 178,720.20 : x
  2. Step 2: Convert to fraction form
    202,048.20/302,489.10 = 178,720.20/x
  3. Step 3: Cross multiply
    202,048.20x = 302,489.10 × 178,720.20
  4. Step 4: Simplify right side
    202,048.20x = 54,060,912,449.82
  5. Step 5: Solve for x
    x = 54,060,912,449.82/202,048.20
  6. Step 6: Final answer
    x = 267,564.43

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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.