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Finding the Fourth Proportional to 168,017.30, 252,025.95 and 145,207.70

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Solution

The fourth proportional to 168,017.30, 252,025.95 and 145,207.70 is: 217,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,017.30 : 252,025.95 = 145,207.70 : x
  2. Step 2: Convert to fraction form
    168,017.30/252,025.95 = 145,207.70/x
  3. Step 3: Cross multiply
    168,017.30x = 252,025.95 × 145,207.70
  4. Step 4: Simplify right side
    168,017.30x = 36,596,108,539.82
  5. Step 5: Solve for x
    x = 36,596,108,539.82/168,017.30
  6. Step 6: Final answer
    x = 217,811.55

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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.