Home / 345,200.30-517,137.06-211,691.24

Finding the Fourth Proportional to 345,200.30, 517,137.06 and 211,691.24

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Solution

The fourth proportional to 345,200.30, 517,137.06 and 211,691.24 is: 317,130.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,200.30 : 517,137.06 = 211,691.24 : x
  2. Step 2: Convert to fraction form
    345,200.30/517,137.06 = 211,691.24/x
  3. Step 3: Cross multiply
    345,200.30x = 517,137.06 × 211,691.24
  4. Step 4: Simplify right side
    345,200.30x = 109,473,385,481.35
  5. Step 5: Solve for x
    x = 109,473,385,481.35/345,200.30
  6. Step 6: Final answer
    x = 317,130.04

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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.