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Finding the Fourth Proportional to 252,801.09, 379,108.62 and 102,960

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Solution

The fourth proportional to 252,801.09, 379,108.62 and 102,960 is: 154,402.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,801.09 : 379,108.62 = 102,960 : x
  2. Step 2: Convert to fraction form
    252,801.09/379,108.62 = 102,960/x
  3. Step 3: Cross multiply
    252,801.09x = 379,108.62 × 102,960
  4. Step 4: Simplify right side
    252,801.09x = 39,033,023,515.20
  5. Step 5: Solve for x
    x = 39,033,023,515.20/252,801.09
  6. Step 6: Final answer
    x = 154,402.12

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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.