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Finding the Fourth Proportional to 291,488.87, 436,245.74 and 179,240.19

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Solution

The fourth proportional to 291,488.87, 436,245.74 and 179,240.19 is: 268,253.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,488.87 : 436,245.74 = 179,240.19 : x
  2. Step 2: Convert to fraction form
    291,488.87/436,245.74 = 179,240.19/x
  3. Step 3: Cross multiply
    291,488.87x = 436,245.74 × 179,240.19
  4. Step 4: Simplify right side
    291,488.87x = 78,192,767,143.06
  5. Step 5: Solve for x
    x = 78,192,767,143.06/291,488.87
  6. Step 6: Final answer
    x = 268,253.01

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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.