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Finding the Fourth Proportional to 260,481.12, 388,381 and 238,239.04

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Solution

The fourth proportional to 260,481.12, 388,381 and 238,239.04 is: 355,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,481.12 : 388,381 = 238,239.04 : x
  2. Step 2: Convert to fraction form
    260,481.12/388,381 = 238,239.04/x
  3. Step 3: Cross multiply
    260,481.12x = 388,381 × 238,239.04
  4. Step 4: Simplify right side
    260,481.12x = 92,527,516,594.24
  5. Step 5: Solve for x
    x = 92,527,516,594.24/260,481.12
  6. Step 6: Final answer
    x = 355,217.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.