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Finding the Fourth Proportional to 218,034.40, 327,051.60 and 143,384.80

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Solution

The fourth proportional to 218,034.40, 327,051.60 and 143,384.80 is: 215,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,034.40 : 327,051.60 = 143,384.80 : x
  2. Step 2: Convert to fraction form
    218,034.40/327,051.60 = 143,384.80/x
  3. Step 3: Cross multiply
    218,034.40x = 327,051.60 × 143,384.80
  4. Step 4: Simplify right side
    218,034.40x = 46,894,228,255.68
  5. Step 5: Solve for x
    x = 46,894,228,255.68/218,034.40
  6. Step 6: Final answer
    x = 215,077.20

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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.