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Finding the Fourth Proportional to 291,847.70, 437,528.55 and 123,497.30

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Solution

The fourth proportional to 291,847.70, 437,528.55 and 123,497.30 is: 185,143.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,847.70 : 437,528.55 = 123,497.30 : x
  2. Step 2: Convert to fraction form
    291,847.70/437,528.55 = 123,497.30/x
  3. Step 3: Cross multiply
    291,847.70x = 437,528.55 × 123,497.30
  4. Step 4: Simplify right side
    291,847.70x = 54,033,594,597.92
  5. Step 5: Solve for x
    x = 54,033,594,597.92/291,847.70
  6. Step 6: Final answer
    x = 185,143.12

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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.