Home / 431,331.60-646,997.40-150,819.60

Finding the Fourth Proportional to 431,331.60, 646,997.40 and 150,819.60

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Solution

The fourth proportional to 431,331.60, 646,997.40 and 150,819.60 is: 226,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,331.60 : 646,997.40 = 150,819.60 : x
  2. Step 2: Convert to fraction form
    431,331.60/646,997.40 = 150,819.60/x
  3. Step 3: Cross multiply
    431,331.60x = 646,997.40 × 150,819.60
  4. Step 4: Simplify right side
    431,331.60x = 97,579,889,069.04
  5. Step 5: Solve for x
    x = 97,579,889,069.04/431,331.60
  6. Step 6: Final answer
    x = 226,229.40

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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.