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Finding the Fourth Proportional to 275,863.83, 380,866.37 and 180,531.69

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Solution

The fourth proportional to 275,863.83, 380,866.37 and 180,531.69 is: 249,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,863.83 : 380,866.37 = 180,531.69 : x
  2. Step 2: Convert to fraction form
    275,863.83/380,866.37 = 180,531.69/x
  3. Step 3: Cross multiply
    275,863.83x = 380,866.37 × 180,531.69
  4. Step 4: Simplify right side
    275,863.83x = 68,758,448,537.61
  5. Step 5: Solve for x
    x = 68,758,448,537.61/275,863.83
  6. Step 6: Final answer
    x = 249,247.78

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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.