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Finding the Fourth Proportional to 253,129.89, 379,577.97 and 93,165.65

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Solution

The fourth proportional to 253,129.89, 379,577.97 and 93,165.65 is: 139,705.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,129.89 : 379,577.97 = 93,165.65 : x
  2. Step 2: Convert to fraction form
    253,129.89/379,577.97 = 93,165.65/x
  3. Step 3: Cross multiply
    253,129.89x = 379,577.97 × 93,165.65
  4. Step 4: Simplify right side
    253,129.89x = 35,363,626,402.84
  5. Step 5: Solve for x
    x = 35,363,626,402.84/253,129.89
  6. Step 6: Final answer
    x = 139,705.45

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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.