Home / 227,721.60-340,804.80-209,059.20

Finding the Fourth Proportional to 227,721.60, 340,804.80 and 209,059.20

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Solution

The fourth proportional to 227,721.60, 340,804.80 and 209,059.20 is: 312,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,721.60 : 340,804.80 = 209,059.20 : x
  2. Step 2: Convert to fraction form
    227,721.60/340,804.80 = 209,059.20/x
  3. Step 3: Cross multiply
    227,721.60x = 340,804.80 × 209,059.20
  4. Step 4: Simplify right side
    227,721.60x = 71,248,378,844.16
  5. Step 5: Solve for x
    x = 71,248,378,844.16/227,721.60
  6. Step 6: Final answer
    x = 312,874.93

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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.