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Finding the Fourth Proportional to 292,807.40, 439,230.30 and 82,452.20

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Solution

The fourth proportional to 292,807.40, 439,230.30 and 82,452.20 is: 123,683.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,807.40 : 439,230.30 = 82,452.20 : x
  2. Step 2: Convert to fraction form
    292,807.40/439,230.30 = 82,452.20/x
  3. Step 3: Cross multiply
    292,807.40x = 439,230.30 × 82,452.20
  4. Step 4: Simplify right side
    292,807.40x = 36,215,504,541.66
  5. Step 5: Solve for x
    x = 36,215,504,541.66/292,807.40
  6. Step 6: Final answer
    x = 123,683.71

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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.