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Finding the Fourth Proportional to 302,979.60, 454,469.40 and 125,427.60

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Solution

The fourth proportional to 302,979.60, 454,469.40 and 125,427.60 is: 188,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,979.60 : 454,469.40 = 125,427.60 : x
  2. Step 2: Convert to fraction form
    302,979.60/454,469.40 = 125,427.60/x
  3. Step 3: Cross multiply
    302,979.60x = 454,469.40 × 125,427.60
  4. Step 4: Simplify right side
    302,979.60x = 57,003,006,115.44
  5. Step 5: Solve for x
    x = 57,003,006,115.44/302,979.60
  6. Step 6: Final answer
    x = 188,141.40

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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.