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Finding the Fourth Proportional to 168,010.20, 252,015.30 and 149,639.40

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Solution

The fourth proportional to 168,010.20, 252,015.30 and 149,639.40 is: 224,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,010.20 : 252,015.30 = 149,639.40 : x
  2. Step 2: Convert to fraction form
    168,010.20/252,015.30 = 149,639.40/x
  3. Step 3: Cross multiply
    168,010.20x = 252,015.30 × 149,639.40
  4. Step 4: Simplify right side
    168,010.20x = 37,711,418,282.82
  5. Step 5: Solve for x
    x = 37,711,418,282.82/168,010.20
  6. Step 6: Final answer
    x = 224,459.10

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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.