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Finding the Fourth Proportional to 291,253.76, 436,930.45 and 133,495.73

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Solution

The fourth proportional to 291,253.76, 436,930.45 and 133,495.73 is: 200,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,253.76 : 436,930.45 = 133,495.73 : x
  2. Step 2: Convert to fraction form
    291,253.76/436,930.45 = 133,495.73/x
  3. Step 3: Cross multiply
    291,253.76x = 436,930.45 × 133,495.73
  4. Step 4: Simplify right side
    291,253.76x = 58,328,346,863.59
  5. Step 5: Solve for x
    x = 58,328,346,863.59/291,253.76
  6. Step 6: Final answer
    x = 200,266.42

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1.5x scale

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.