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Finding the Fourth Proportional to 291,818.70, 437,485.05 and 123,468.30

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Solution

The fourth proportional to 291,818.70, 437,485.05 and 123,468.30 is: 185,099.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,818.70 : 437,485.05 = 123,468.30 : x
  2. Step 2: Convert to fraction form
    291,818.70/437,485.05 = 123,468.30/x
  3. Step 3: Cross multiply
    291,818.70x = 437,485.05 × 123,468.30
  4. Step 4: Simplify right side
    291,818.70x = 54,015,535,398.92
  5. Step 5: Solve for x
    x = 54,015,535,398.92/291,818.70
  6. Step 6: Final answer
    x = 185,099.64

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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.