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Finding the Fourth Proportional to 291,299.70, 437,022.45 and 231,554.10

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Solution

The fourth proportional to 291,299.70, 437,022.45 and 231,554.10 is: 347,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,299.70 : 437,022.45 = 231,554.10 : x
  2. Step 2: Convert to fraction form
    291,299.70/437,022.45 = 231,554.10/x
  3. Step 3: Cross multiply
    291,299.70x = 437,022.45 × 231,554.10
  4. Step 4: Simplify right side
    291,299.70x = 101,194,340,089.55
  5. Step 5: Solve for x
    x = 101,194,340,089.55/291,299.70
  6. Step 6: Final answer
    x = 347,389.10

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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.