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Finding the Fourth Proportional to 168,217.40, 252,326.10 and 68,344.40

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Solution

The fourth proportional to 168,217.40, 252,326.10 and 68,344.40 is: 102,516.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,217.40 : 252,326.10 = 68,344.40 : x
  2. Step 2: Convert to fraction form
    168,217.40/252,326.10 = 68,344.40/x
  3. Step 3: Cross multiply
    168,217.40x = 252,326.10 × 68,344.40
  4. Step 4: Simplify right side
    168,217.40x = 17,245,075,908.84
  5. Step 5: Solve for x
    x = 17,245,075,908.84/168,217.40
  6. Step 6: Final answer
    x = 102,516.60

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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.