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Finding the Fourth Proportional to 229,309.60, 343,996.80 and 71,521.60

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Solution

The fourth proportional to 229,309.60, 343,996.80 and 71,521.60 is: 107,292.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,309.60 : 343,996.80 = 71,521.60 : x
  2. Step 2: Convert to fraction form
    229,309.60/343,996.80 = 71,521.60/x
  3. Step 3: Cross multiply
    229,309.60x = 343,996.80 × 71,521.60
  4. Step 4: Simplify right side
    229,309.60x = 24,603,201,530.88
  5. Step 5: Solve for x
    x = 24,603,201,530.88/229,309.60
  6. Step 6: Final answer
    x = 107,292.51

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1.5x scale

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.