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Finding the Fourth Proportional to 552,012.20, 828,018.30 and 172,964.60

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Solution

The fourth proportional to 552,012.20, 828,018.30 and 172,964.60 is: 259,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,012.20 : 828,018.30 = 172,964.60 : x
  2. Step 2: Convert to fraction form
    552,012.20/828,018.30 = 172,964.60/x
  3. Step 3: Cross multiply
    552,012.20x = 828,018.30 × 172,964.60
  4. Step 4: Simplify right side
    552,012.20x = 143,217,854,052.18
  5. Step 5: Solve for x
    x = 143,217,854,052.18/552,012.20
  6. Step 6: Final answer
    x = 259,446.90

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Similar ratio
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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.