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Finding the Fourth Proportional to 425,360.58, 638,335.55 and 169,166.90

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Solution

The fourth proportional to 425,360.58, 638,335.55 and 169,166.90 is: 253,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,360.58 : 638,335.55 = 169,166.90 : x
  2. Step 2: Convert to fraction form
    425,360.58/638,335.55 = 169,166.90/x
  3. Step 3: Cross multiply
    425,360.58x = 638,335.55 × 169,166.90
  4. Step 4: Simplify right side
    425,360.58x = 107,985,246,153.30
  5. Step 5: Solve for x
    x = 107,985,246,153.30/425,360.58
  6. Step 6: Final answer
    x = 253,867.54

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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.