Home / 345,116.20-517,747.90-195,426.60

Finding the Fourth Proportional to 345,116.20, 517,747.90 and 195,426.60

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Solution

The fourth proportional to 345,116.20, 517,747.90 and 195,426.60 is: 293,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,116.20 : 517,747.90 = 195,426.60 : x
  2. Step 2: Convert to fraction form
    345,116.20/517,747.90 = 195,426.60/x
  3. Step 3: Cross multiply
    345,116.20x = 517,747.90 × 195,426.60
  4. Step 4: Simplify right side
    345,116.20x = 101,181,711,754.14
  5. Step 5: Solve for x
    x = 101,181,711,754.14/345,116.20
  6. Step 6: Final answer
    x = 293,181.58

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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.