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Finding the Fourth Proportional to 226,978.80, 340,468.20 and 115,004.40

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Solution

The fourth proportional to 226,978.80, 340,468.20 and 115,004.40 is: 172,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,978.80 : 340,468.20 = 115,004.40 : x
  2. Step 2: Convert to fraction form
    226,978.80/340,468.20 = 115,004.40/x
  3. Step 3: Cross multiply
    226,978.80x = 340,468.20 × 115,004.40
  4. Step 4: Simplify right side
    226,978.80x = 39,155,341,060.08
  5. Step 5: Solve for x
    x = 39,155,341,060.08/226,978.80
  6. Step 6: Final answer
    x = 172,506.60

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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.