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Finding the Fourth Proportional to 291,281.80, 436,922.70 and 113,794.60

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Solution

The fourth proportional to 291,281.80, 436,922.70 and 113,794.60 is: 170,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,281.80 : 436,922.70 = 113,794.60 : x
  2. Step 2: Convert to fraction form
    291,281.80/436,922.70 = 113,794.60/x
  3. Step 3: Cross multiply
    291,281.80x = 436,922.70 × 113,794.60
  4. Step 4: Simplify right side
    291,281.80x = 49,719,443,877.42
  5. Step 5: Solve for x
    x = 49,719,443,877.42/291,281.80
  6. Step 6: Final answer
    x = 170,691.90

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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.