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Finding the Fourth Proportional to 224,379, 309,648.87 and 122,406.12

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Solution

The fourth proportional to 224,379, 309,648.87 and 122,406.12 is: 168,923.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,379 : 309,648.87 = 122,406.12 : x
  2. Step 2: Convert to fraction form
    224,379/309,648.87 = 122,406.12/x
  3. Step 3: Cross multiply
    224,379x = 309,648.87 × 122,406.12
  4. Step 4: Simplify right side
    224,379x = 37,902,916,739.08
  5. Step 5: Solve for x
    x = 37,902,916,739.08/224,379
  6. Step 6: Final answer
    x = 168,923.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.