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Finding the Fourth Proportional to 425,393.82, 638,090.19 and 109,849.14

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Solution

The fourth proportional to 425,393.82, 638,090.19 and 109,849.14 is: 164,773.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,393.82 : 638,090.19 = 109,849.14 : x
  2. Step 2: Convert to fraction form
    425,393.82/638,090.19 = 109,849.14/x
  3. Step 3: Cross multiply
    425,393.82x = 638,090.19 × 109,849.14
  4. Step 4: Simplify right side
    425,393.82x = 70,093,658,613.94
  5. Step 5: Solve for x
    x = 70,093,658,613.94/425,393.82
  6. Step 6: Final answer
    x = 164,773.57

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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.