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Finding the Fourth Proportional to 172,017.80, 257,589.30 and 164,144.60

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Solution

The fourth proportional to 172,017.80, 257,589.30 and 164,144.60 is: 245,799.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,017.80 : 257,589.30 = 164,144.60 : x
  2. Step 2: Convert to fraction form
    172,017.80/257,589.30 = 164,144.60/x
  3. Step 3: Cross multiply
    172,017.80x = 257,589.30 × 164,144.60
  4. Step 4: Simplify right side
    172,017.80x = 42,281,892,612.78
  5. Step 5: Solve for x
    x = 42,281,892,612.78/172,017.80
  6. Step 6: Final answer
    x = 245,799.52

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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.