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Finding the Fourth Proportional to 154,494.20, 231,914.10 and 144,342.20

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Solution

The fourth proportional to 154,494.20, 231,914.10 and 144,342.20 is: 216,674.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,494.20 : 231,914.10 = 144,342.20 : x
  2. Step 2: Convert to fraction form
    154,494.20/231,914.10 = 144,342.20/x
  3. Step 3: Cross multiply
    154,494.20x = 231,914.10 × 144,342.20
  4. Step 4: Simplify right side
    154,494.20x = 33,474,991,405.02
  5. Step 5: Solve for x
    x = 33,474,991,405.02/154,494.20
  6. Step 6: Final answer
    x = 216,674.75

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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.