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Finding the Fourth Proportional to 403,559.40, 605,079.90 and 166,996.20

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Solution

The fourth proportional to 403,559.40, 605,079.90 and 166,996.20 is: 250,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,559.40 : 605,079.90 = 166,996.20 : x
  2. Step 2: Convert to fraction form
    403,559.40/605,079.90 = 166,996.20/x
  3. Step 3: Cross multiply
    403,559.40x = 605,079.90 × 166,996.20
  4. Step 4: Simplify right side
    403,559.40x = 101,046,043,996.38
  5. Step 5: Solve for x
    x = 101,046,043,996.38/403,559.40
  6. Step 6: Final answer
    x = 250,387.04

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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.