Home / 218,982.60-328,085.10-204,985.80

Finding the Fourth Proportional to 218,982.60, 328,085.10 and 204,985.80

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Solution

The fourth proportional to 218,982.60, 328,085.10 and 204,985.80 is: 307,114.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,982.60 : 328,085.10 = 204,985.80 : x
  2. Step 2: Convert to fraction form
    218,982.60/328,085.10 = 204,985.80/x
  3. Step 3: Cross multiply
    218,982.60x = 328,085.10 × 204,985.80
  4. Step 4: Simplify right side
    218,982.60x = 67,252,786,691.58
  5. Step 5: Solve for x
    x = 67,252,786,691.58/218,982.60
  6. Step 6: Final answer
    x = 307,114.75

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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.