Home / 425,845.59-639,188.70-226,165.41

Finding the Fourth Proportional to 425,845.59, 639,188.70 and 226,165.41

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Solution

The fourth proportional to 425,845.59, 639,188.70 and 226,165.41 is: 339,471.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,845.59 : 639,188.70 = 226,165.41 : x
  2. Step 2: Convert to fraction form
    425,845.59/639,188.70 = 226,165.41/x
  3. Step 3: Cross multiply
    425,845.59x = 639,188.70 × 226,165.41
  4. Step 4: Simplify right side
    425,845.59x = 144,562,374,402.87
  5. Step 5: Solve for x
    x = 144,562,374,402.87/425,845.59
  6. Step 6: Final answer
    x = 339,471.34

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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.