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Finding the Fourth Proportional to 201,627.80, 302,551.05 and 83,311.10

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Solution

The fourth proportional to 201,627.80, 302,551.05 and 83,311.10 is: 125,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,627.80 : 302,551.05 = 83,311.10 : x
  2. Step 2: Convert to fraction form
    201,627.80/302,551.05 = 83,311.10/x
  3. Step 3: Cross multiply
    201,627.80x = 302,551.05 × 83,311.10
  4. Step 4: Simplify right side
    201,627.80x = 25,205,860,781.66
  5. Step 5: Solve for x
    x = 25,205,860,781.66/201,627.80
  6. Step 6: Final answer
    x = 125,011.83

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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.