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Finding the Fourth Proportional to 308,225.78, 425,231.43 and 193,437.44

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Solution

The fourth proportional to 308,225.78, 425,231.43 and 193,437.44 is: 266,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,225.78 : 425,231.43 = 193,437.44 : x
  2. Step 2: Convert to fraction form
    308,225.78/425,231.43 = 193,437.44/x
  3. Step 3: Cross multiply
    308,225.78x = 425,231.43 × 193,437.44
  4. Step 4: Simplify right side
    308,225.78x = 82,255,679,226.74
  5. Step 5: Solve for x
    x = 82,255,679,226.74/308,225.78
  6. Step 6: Final answer
    x = 266,868.27

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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.