Home / 291,217.28-436,825.61-91,555.11

Finding the Fourth Proportional to 291,217.28, 436,825.61 and 91,555.11

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Solution

The fourth proportional to 291,217.28, 436,825.61 and 91,555.11 is: 137,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,217.28 : 436,825.61 = 91,555.11 : x
  2. Step 2: Convert to fraction form
    291,217.28/436,825.61 = 91,555.11/x
  3. Step 3: Cross multiply
    291,217.28x = 436,825.61 × 91,555.11
  4. Step 4: Simplify right side
    291,217.28x = 39,993,616,659.92
  5. Step 5: Solve for x
    x = 39,993,616,659.92/291,217.28
  6. Step 6: Final answer
    x = 137,332.57

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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.