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Finding the Fourth Proportional to 287,887.80, 397,470.06 and 180,604.92

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Solution

The fourth proportional to 287,887.80, 397,470.06 and 180,604.92 is: 249,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,887.80 : 397,470.06 = 180,604.92 : x
  2. Step 2: Convert to fraction form
    287,887.80/397,470.06 = 180,604.92/x
  3. Step 3: Cross multiply
    287,887.80x = 397,470.06 × 180,604.92
  4. Step 4: Simplify right side
    287,887.80x = 71,785,048,388.70
  5. Step 5: Solve for x
    x = 71,785,048,388.70/287,887.80
  6. Step 6: Final answer
    x = 249,350.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.