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Finding the Fourth Proportional to 275,866.83, 380,870.51 and 180,534.69

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Solution

The fourth proportional to 275,866.83, 380,870.51 and 180,534.69 is: 249,251.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,866.83 : 380,870.51 = 180,534.69 : x
  2. Step 2: Convert to fraction form
    275,866.83/380,870.51 = 180,534.69/x
  3. Step 3: Cross multiply
    275,866.83x = 380,870.51 × 180,534.69
  4. Step 4: Simplify right side
    275,866.83x = 68,760,339,452.99
  5. Step 5: Solve for x
    x = 68,760,339,452.99/275,866.83
  6. Step 6: Final answer
    x = 249,251.93

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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.