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Finding the Fourth Proportional to 168,803.40, 253,205.10 and 155,025.30

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Solution

The fourth proportional to 168,803.40, 253,205.10 and 155,025.30 is: 232,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,803.40 : 253,205.10 = 155,025.30 : x
  2. Step 2: Convert to fraction form
    168,803.40/253,205.10 = 155,025.30/x
  3. Step 3: Cross multiply
    168,803.40x = 253,205.10 × 155,025.30
  4. Step 4: Simplify right side
    168,803.40x = 39,253,196,589.03
  5. Step 5: Solve for x
    x = 39,253,196,589.03/168,803.40
  6. Step 6: Final answer
    x = 232,537.95

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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.