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Finding the Fourth Proportional to 224,679.12, 310,183.74 and 155,868

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Solution

The fourth proportional to 224,679.12, 310,183.74 and 155,868 is: 215,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,679.12 : 310,183.74 = 155,868 : x
  2. Step 2: Convert to fraction form
    224,679.12/310,183.74 = 155,868/x
  3. Step 3: Cross multiply
    224,679.12x = 310,183.74 × 155,868
  4. Step 4: Simplify right side
    224,679.12x = 48,347,719,186.32
  5. Step 5: Solve for x
    x = 48,347,719,186.32/224,679.12
  6. Step 6: Final answer
    x = 215,185.64

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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.