Home / 218,814.11-328,276.52-61,042.49

Finding the Fourth Proportional to 218,814.11, 328,276.52 and 61,042.49

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Solution

The fourth proportional to 218,814.11, 328,276.52 and 61,042.49 is: 91,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,814.11 : 328,276.52 = 61,042.49 : x
  2. Step 2: Convert to fraction form
    218,814.11/328,276.52 = 61,042.49/x
  3. Step 3: Cross multiply
    218,814.11x = 328,276.52 × 61,042.49
  4. Step 4: Simplify right side
    218,814.11x = 20,038,815,884.12
  5. Step 5: Solve for x
    x = 20,038,815,884.12/218,814.11
  6. Step 6: Final answer
    x = 91,579.18

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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.