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Finding the Fourth Proportional to 291,964, 437,974.08 and 134,236.48

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Solution

The fourth proportional to 291,964, 437,974.08 and 134,236.48 is: 201,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,964 : 437,974.08 = 134,236.48 : x
  2. Step 2: Convert to fraction form
    291,964/437,974.08 = 134,236.48/x
  3. Step 3: Cross multiply
    291,964x = 437,974.08 × 134,236.48
  4. Step 4: Simplify right side
    291,964x = 58,792,098,830.44
  5. Step 5: Solve for x
    x = 58,792,098,830.44/291,964
  6. Step 6: Final answer
    x = 201,367.63

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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.