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Finding the Fourth Proportional to 422,275.84, 582,752.02 and 238,499.68

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Solution

The fourth proportional to 422,275.84, 582,752.02 and 238,499.68 is: 329,135.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,275.84 : 582,752.02 = 238,499.68 : x
  2. Step 2: Convert to fraction form
    422,275.84/582,752.02 = 238,499.68/x
  3. Step 3: Cross multiply
    422,275.84x = 582,752.02 × 238,499.68
  4. Step 4: Simplify right side
    422,275.84x = 138,986,170,289.35
  5. Step 5: Solve for x
    x = 138,986,170,289.35/422,275.84
  6. Step 6: Final answer
    x = 329,135.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.