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Finding the Fourth Proportional to 318,748.29, 478,174.33 and 94,131.44

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Solution

The fourth proportional to 318,748.29, 478,174.33 and 94,131.44 is: 141,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,748.29 : 478,174.33 = 94,131.44 : x
  2. Step 2: Convert to fraction form
    318,748.29/478,174.33 = 94,131.44/x
  3. Step 3: Cross multiply
    318,748.29x = 478,174.33 × 94,131.44
  4. Step 4: Simplify right side
    318,748.29x = 45,011,238,253.94
  5. Step 5: Solve for x
    x = 45,011,238,253.94/318,748.29
  6. Step 6: Final answer
    x = 141,212.49

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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.