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Finding the Fourth Proportional to 437,773.80, 656,579.70 and 122,165.40

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Solution

The fourth proportional to 437,773.80, 656,579.70 and 122,165.40 is: 183,225.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,773.80 : 656,579.70 = 122,165.40 : x
  2. Step 2: Convert to fraction form
    437,773.80/656,579.70 = 122,165.40/x
  3. Step 3: Cross multiply
    437,773.80x = 656,579.70 × 122,165.40
  4. Step 4: Simplify right side
    437,773.80x = 80,211,321,682.38
  5. Step 5: Solve for x
    x = 80,211,321,682.38/437,773.80
  6. Step 6: Final answer
    x = 183,225.50

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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.