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Finding the Fourth Proportional to 291,467.87, 437,217.48 and 91,803.89

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Solution

The fourth proportional to 291,467.87, 437,217.48 and 91,803.89 is: 137,710.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,467.87 : 437,217.48 = 91,803.89 : x
  2. Step 2: Convert to fraction form
    291,467.87/437,217.48 = 91,803.89/x
  3. Step 3: Cross multiply
    291,467.87x = 437,217.48 × 91,803.89
  4. Step 4: Simplify right side
    291,467.87x = 40,138,263,253.91
  5. Step 5: Solve for x
    x = 40,138,263,253.91/291,467.87
  6. Step 6: Final answer
    x = 137,710.76

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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.