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Finding the Fourth Proportional to 218,083.40, 327,125.10 and 143,433.80

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Solution

The fourth proportional to 218,083.40, 327,125.10 and 143,433.80 is: 215,150.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,083.40 : 327,125.10 = 143,433.80 : x
  2. Step 2: Convert to fraction form
    218,083.40/327,125.10 = 143,433.80/x
  3. Step 3: Cross multiply
    218,083.40x = 327,125.10 × 143,433.80
  4. Step 4: Simplify right side
    218,083.40x = 46,920,796,168.38
  5. Step 5: Solve for x
    x = 46,920,796,168.38/218,083.40
  6. Step 6: Final answer
    x = 215,150.70

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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.