Home / 291,281.24-436,945.55-80,919.18

Finding the Fourth Proportional to 291,281.24, 436,945.55 and 80,919.18

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Solution

The fourth proportional to 291,281.24, 436,945.55 and 80,919.18 is: 121,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,281.24 : 436,945.55 = 80,919.18 : x
  2. Step 2: Convert to fraction form
    291,281.24/436,945.55 = 80,919.18/x
  3. Step 3: Cross multiply
    291,281.24x = 436,945.55 × 80,919.18
  4. Step 4: Simplify right side
    291,281.24x = 35,357,275,610.65
  5. Step 5: Solve for x
    x = 35,357,275,610.65/291,281.24
  6. Step 6: Final answer
    x = 121,385.35

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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.