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Finding the Fourth Proportional to 305,025.60, 457,538.40 and 245,976.60

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Solution

The fourth proportional to 305,025.60, 457,538.40 and 245,976.60 is: 368,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,025.60 : 457,538.40 = 245,976.60 : x
  2. Step 2: Convert to fraction form
    305,025.60/457,538.40 = 245,976.60/x
  3. Step 3: Cross multiply
    305,025.60x = 457,538.40 × 245,976.60
  4. Step 4: Simplify right side
    305,025.60x = 112,543,740,001.44
  5. Step 5: Solve for x
    x = 112,543,740,001.44/305,025.60
  6. Step 6: Final answer
    x = 368,964.90

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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.