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Finding the Fourth Proportional to 366,979.30, 550,468.95 and 317,115.70

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Solution

The fourth proportional to 366,979.30, 550,468.95 and 317,115.70 is: 475,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,979.30 : 550,468.95 = 317,115.70 : x
  2. Step 2: Convert to fraction form
    366,979.30/550,468.95 = 317,115.70/x
  3. Step 3: Cross multiply
    366,979.30x = 550,468.95 × 317,115.70
  4. Step 4: Simplify right side
    366,979.30x = 174,562,346,407.52
  5. Step 5: Solve for x
    x = 174,562,346,407.52/366,979.30
  6. Step 6: Final answer
    x = 475,673.55

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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.