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Finding the Fourth Proportional to 154,467.70, 231,701.55 and 65,724.10

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Solution

The fourth proportional to 154,467.70, 231,701.55 and 65,724.10 is: 98,586.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,467.70 : 231,701.55 = 65,724.10 : x
  2. Step 2: Convert to fraction form
    154,467.70/231,701.55 = 65,724.10/x
  3. Step 3: Cross multiply
    154,467.70x = 231,701.55 × 65,724.10
  4. Step 4: Simplify right side
    154,467.70x = 15,228,375,842.36
  5. Step 5: Solve for x
    x = 15,228,375,842.36/154,467.70
  6. Step 6: Final answer
    x = 98,586.15

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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.