Home / 275,779.14-380,516.13-161,005.65

Finding the Fourth Proportional to 275,779.14, 380,516.13 and 161,005.65

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Solution

The fourth proportional to 275,779.14, 380,516.13 and 161,005.65 is: 222,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,779.14 : 380,516.13 = 161,005.65 : x
  2. Step 2: Convert to fraction form
    275,779.14/380,516.13 = 161,005.65/x
  3. Step 3: Cross multiply
    275,779.14x = 380,516.13 × 161,005.65
  4. Step 4: Simplify right side
    275,779.14x = 61,265,246,846.13
  5. Step 5: Solve for x
    x = 61,265,246,846.13/275,779.14
  6. Step 6: Final answer
    x = 222,153.30

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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.