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Finding the Fourth Proportional to 143,230.65, 214,868.27 and 43,367.07

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Solution

The fourth proportional to 143,230.65, 214,868.27 and 43,367.07 is: 65,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,230.65 : 214,868.27 = 43,367.07 : x
  2. Step 2: Convert to fraction form
    143,230.65/214,868.27 = 43,367.07/x
  3. Step 3: Cross multiply
    143,230.65x = 214,868.27 × 43,367.07
  4. Step 4: Simplify right side
    143,230.65x = 9,318,207,493.76
  5. Step 5: Solve for x
    x = 9,318,207,493.76/143,230.65
  6. Step 6: Final answer
    x = 65,057.35

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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.