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Finding the Fourth Proportional to 229,758.65, 344,638.10 and 71,999.45

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Solution

The fourth proportional to 229,758.65, 344,638.10 and 71,999.45 is: 107,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,758.65 : 344,638.10 = 71,999.45 : x
  2. Step 2: Convert to fraction form
    229,758.65/344,638.10 = 71,999.45/x
  3. Step 3: Cross multiply
    229,758.65x = 344,638.10 × 71,999.45
  4. Step 4: Simplify right side
    229,758.65x = 24,813,753,649.05
  5. Step 5: Solve for x
    x = 24,813,753,649.05/229,758.65
  6. Step 6: Final answer
    x = 107,999.21

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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.