Home / 227,731.60-340,819.80-209,069.20

Finding the Fourth Proportional to 227,731.60, 340,819.80 and 209,069.20

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Solution

The fourth proportional to 227,731.60, 340,819.80 and 209,069.20 is: 312,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,731.60 : 340,819.80 = 209,069.20 : x
  2. Step 2: Convert to fraction form
    227,731.60/340,819.80 = 209,069.20/x
  3. Step 3: Cross multiply
    227,731.60x = 340,819.80 × 209,069.20
  4. Step 4: Simplify right side
    227,731.60x = 71,254,922,930.16
  5. Step 5: Solve for x
    x = 71,254,922,930.16/227,731.60
  6. Step 6: Final answer
    x = 312,889.92

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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.