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Finding the Fourth Proportional to 252,802.59, 379,110.87 and 102,961.50

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Solution

The fourth proportional to 252,802.59, 379,110.87 and 102,961.50 is: 154,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,802.59 : 379,110.87 = 102,961.50 : x
  2. Step 2: Convert to fraction form
    252,802.59/379,110.87 = 102,961.50/x
  3. Step 3: Cross multiply
    252,802.59x = 379,110.87 × 102,961.50
  4. Step 4: Simplify right side
    252,802.59x = 39,033,823,841.51
  5. Step 5: Solve for x
    x = 39,033,823,841.51/252,802.59
  6. Step 6: Final answer
    x = 154,404.37

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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.