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Finding the Fourth Proportional to 343,878.20, 515,817.30 and 250,566.20

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Solution

The fourth proportional to 343,878.20, 515,817.30 and 250,566.20 is: 375,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,878.20 : 515,817.30 = 250,566.20 : x
  2. Step 2: Convert to fraction form
    343,878.20/515,817.30 = 250,566.20/x
  3. Step 3: Cross multiply
    343,878.20x = 515,817.30 × 250,566.20
  4. Step 4: Simplify right side
    343,878.20x = 129,246,380,755.26
  5. Step 5: Solve for x
    x = 129,246,380,755.26/343,878.20
  6. Step 6: Final answer
    x = 375,849.30

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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.