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Finding the Fourth Proportional to 272,582.60, 408,873.90 and 255,086.60

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Solution

The fourth proportional to 272,582.60, 408,873.90 and 255,086.60 is: 382,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,582.60 : 408,873.90 = 255,086.60 : x
  2. Step 2: Convert to fraction form
    272,582.60/408,873.90 = 255,086.60/x
  3. Step 3: Cross multiply
    272,582.60x = 408,873.90 × 255,086.60
  4. Step 4: Simplify right side
    272,582.60x = 104,298,252,979.74
  5. Step 5: Solve for x
    x = 104,298,252,979.74/272,582.60
  6. Step 6: Final answer
    x = 382,629.90

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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.