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Finding the Fourth Proportional to 426,722.27, 640,398.36 and 202,082.27

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Solution

The fourth proportional to 426,722.27, 640,398.36 and 202,082.27 is: 303,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,722.27 : 640,398.36 = 202,082.27 : x
  2. Step 2: Convert to fraction form
    426,722.27/640,398.36 = 202,082.27/x
  3. Step 3: Cross multiply
    426,722.27x = 640,398.36 × 202,082.27
  4. Step 4: Simplify right side
    426,722.27x = 129,413,154,293.08
  5. Step 5: Solve for x
    x = 129,413,154,293.08/426,722.27
  6. Step 6: Final answer
    x = 303,272.56

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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.