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Finding the Fourth Proportional to 291,256.62, 436,884.50 and 91,594.50

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Solution

The fourth proportional to 291,256.62, 436,884.50 and 91,594.50 is: 137,391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,256.62 : 436,884.50 = 91,594.50 : x
  2. Step 2: Convert to fraction form
    291,256.62/436,884.50 = 91,594.50/x
  3. Step 3: Cross multiply
    291,256.62x = 436,884.50 × 91,594.50
  4. Step 4: Simplify right side
    291,256.62x = 40,016,217,335.25
  5. Step 5: Solve for x
    x = 40,016,217,335.25/291,256.62
  6. Step 6: Final answer
    x = 137,391.61

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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.