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Finding the Fourth Proportional to 313,010.78, 469,535.19 and 88,388.15

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Solution

The fourth proportional to 313,010.78, 469,535.19 and 88,388.15 is: 132,587.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,010.78 : 469,535.19 = 88,388.15 : x
  2. Step 2: Convert to fraction form
    313,010.78/469,535.19 = 88,388.15/x
  3. Step 3: Cross multiply
    313,010.78x = 469,535.19 × 88,388.15
  4. Step 4: Simplify right side
    313,010.78x = 41,501,346,362.06
  5. Step 5: Solve for x
    x = 41,501,346,362.06/313,010.78
  6. Step 6: Final answer
    x = 132,587.59

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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.