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Finding the Fourth Proportional to 309,820.60, 464,721.30 and 88,204.60

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Solution

The fourth proportional to 309,820.60, 464,721.30 and 88,204.60 is: 132,304.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,820.60 : 464,721.30 = 88,204.60 : x
  2. Step 2: Convert to fraction form
    309,820.60/464,721.30 = 88,204.60/x
  3. Step 3: Cross multiply
    309,820.60x = 464,721.30 × 88,204.60
  4. Step 4: Simplify right side
    309,820.60x = 40,990,556,377.98
  5. Step 5: Solve for x
    x = 40,990,556,377.98/309,820.60
  6. Step 6: Final answer
    x = 132,304.17

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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.