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Finding the Fourth Proportional to 309,808.60, 464,703.30 and 88,192.60

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Solution

The fourth proportional to 309,808.60, 464,703.30 and 88,192.60 is: 132,286.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,808.60 : 464,703.30 = 88,192.60 : x
  2. Step 2: Convert to fraction form
    309,808.60/464,703.30 = 88,192.60/x
  3. Step 3: Cross multiply
    309,808.60x = 464,703.30 × 88,192.60
  4. Step 4: Simplify right side
    309,808.60x = 40,983,392,255.58
  5. Step 5: Solve for x
    x = 40,983,392,255.58/309,808.60
  6. Step 6: Final answer
    x = 132,286.17

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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.