Home / 275,237.24-412,465.20-115,140.64

Finding the Fourth Proportional to 275,237.24, 412,465.20 and 115,140.64

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Solution

The fourth proportional to 275,237.24, 412,465.20 and 115,140.64 is: 172,547.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,237.24 : 412,465.20 = 115,140.64 : x
  2. Step 2: Convert to fraction form
    275,237.24/412,465.20 = 115,140.64/x
  3. Step 3: Cross multiply
    275,237.24x = 412,465.20 × 115,140.64
  4. Step 4: Simplify right side
    275,237.24x = 47,491,507,105.73
  5. Step 5: Solve for x
    x = 47,491,507,105.73/275,237.24
  6. Step 6: Final answer
    x = 172,547.53

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1.5x scale

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.