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Finding the Fourth Proportional to 216,125.20, 323,950.20 and 75,811.60

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Solution

The fourth proportional to 216,125.20, 323,950.20 and 75,811.60 is: 113,634.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,125.20 : 323,950.20 = 75,811.60 : x
  2. Step 2: Convert to fraction form
    216,125.20/323,950.20 = 75,811.60/x
  3. Step 3: Cross multiply
    216,125.20x = 323,950.20 × 75,811.60
  4. Step 4: Simplify right side
    216,125.20x = 24,559,182,982.32
  5. Step 5: Solve for x
    x = 24,559,182,982.32/216,125.20
  6. Step 6: Final answer
    x = 113,634.06

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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.