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Finding the Fourth Proportional to 271,323.20, 406,984.80 and 187,342.40

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Solution

The fourth proportional to 271,323.20, 406,984.80 and 187,342.40 is: 281,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,323.20 : 406,984.80 = 187,342.40 : x
  2. Step 2: Convert to fraction form
    271,323.20/406,984.80 = 187,342.40/x
  3. Step 3: Cross multiply
    271,323.20x = 406,984.80 × 187,342.40
  4. Step 4: Simplify right side
    271,323.20x = 76,245,509,195.52
  5. Step 5: Solve for x
    x = 76,245,509,195.52/271,323.20
  6. Step 6: Final answer
    x = 281,013.60

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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.