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Finding the Fourth Proportional to 227,485.78, 341,268.78 and 77,690.96

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Solution

The fourth proportional to 227,485.78, 341,268.78 and 77,690.96 is: 116,550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,485.78 : 341,268.78 = 77,690.96 : x
  2. Step 2: Convert to fraction form
    227,485.78/341,268.78 = 77,690.96/x
  3. Step 3: Cross multiply
    227,485.78x = 341,268.78 × 77,690.96
  4. Step 4: Simplify right side
    227,485.78x = 26,513,499,136.23
  5. Step 5: Solve for x
    x = 26,513,499,136.23/227,485.78
  6. Step 6: Final answer
    x = 116,550.14

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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.