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Finding the Fourth Proportional to 251,950.90, 347,685.12 and 137,226.94

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Solution

The fourth proportional to 251,950.90, 347,685.12 and 137,226.94 is: 189,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,950.90 : 347,685.12 = 137,226.94 : x
  2. Step 2: Convert to fraction form
    251,950.90/347,685.12 = 137,226.94/x
  3. Step 3: Cross multiply
    251,950.90x = 347,685.12 × 137,226.94
  4. Step 4: Simplify right side
    251,950.90x = 47,711,765,101.13
  5. Step 5: Solve for x
    x = 47,711,765,101.13/251,950.90
  6. Step 6: Final answer
    x = 189,369.30

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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.