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Finding the Fourth Proportional to 425,932.90, 638,356.64 and 226,348.90

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Solution

The fourth proportional to 425,932.90, 638,356.64 and 226,348.90 is: 339,234.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,932.90 : 638,356.64 = 226,348.90 : x
  2. Step 2: Convert to fraction form
    425,932.90/638,356.64 = 226,348.90/x
  3. Step 3: Cross multiply
    425,932.90x = 638,356.64 × 226,348.90
  4. Step 4: Simplify right side
    425,932.90x = 144,491,323,271.70
  5. Step 5: Solve for x
    x = 144,491,323,271.70/425,932.90
  6. Step 6: Final answer
    x = 339,234.94

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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.