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Finding the Fourth Proportional to 291,180.61, 436,773.35 and 91,496.58

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Solution

The fourth proportional to 291,180.61, 436,773.35 and 91,496.58 is: 137,245.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,180.61 : 436,773.35 = 91,496.58 : x
  2. Step 2: Convert to fraction form
    291,180.61/436,773.35 = 91,496.58/x
  3. Step 3: Cross multiply
    291,180.61x = 436,773.35 × 91,496.58
  4. Step 4: Simplify right side
    291,180.61x = 39,963,267,760.14
  5. Step 5: Solve for x
    x = 39,963,267,760.14/291,180.61
  6. Step 6: Final answer
    x = 137,245.64

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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.