Home / 291,282.24-436,947.05-80,920.18

Finding the Fourth Proportional to 291,282.24, 436,947.05 and 80,920.18

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Solution

The fourth proportional to 291,282.24, 436,947.05 and 80,920.18 is: 121,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,282.24 : 436,947.05 = 80,920.18 : x
  2. Step 2: Convert to fraction form
    291,282.24/436,947.05 = 80,920.18/x
  3. Step 3: Cross multiply
    291,282.24x = 436,947.05 × 80,920.18
  4. Step 4: Simplify right side
    291,282.24x = 35,357,833,936.47
  5. Step 5: Solve for x
    x = 35,357,833,936.47/291,282.24
  6. Step 6: Final answer
    x = 121,386.85

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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.