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Finding the Fourth Proportional to 267,348.60, 401,022.90 and 172,870.20

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Solution

The fourth proportional to 267,348.60, 401,022.90 and 172,870.20 is: 259,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,348.60 : 401,022.90 = 172,870.20 : x
  2. Step 2: Convert to fraction form
    267,348.60/401,022.90 = 172,870.20/x
  3. Step 3: Cross multiply
    267,348.60x = 401,022.90 × 172,870.20
  4. Step 4: Simplify right side
    267,348.60x = 69,324,908,927.58
  5. Step 5: Solve for x
    x = 69,324,908,927.58/267,348.60
  6. Step 6: Final answer
    x = 259,305.30

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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.