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Finding the Fourth Proportional to 216,967.80, 324,818.10 and 154,759.80

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Solution

The fourth proportional to 216,967.80, 324,818.10 and 154,759.80 is: 231,687.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,967.80 : 324,818.10 = 154,759.80 : x
  2. Step 2: Convert to fraction form
    216,967.80/324,818.10 = 154,759.80/x
  3. Step 3: Cross multiply
    216,967.80x = 324,818.10 × 154,759.80
  4. Step 4: Simplify right side
    216,967.80x = 50,268,784,192.38
  5. Step 5: Solve for x
    x = 50,268,784,192.38/216,967.80
  6. Step 6: Final answer
    x = 231,687.76

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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.