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Finding the Fourth Proportional to 251,551.94, 377,327.90 and 172,426.28

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Solution

The fourth proportional to 251,551.94, 377,327.90 and 172,426.28 is: 258,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,551.94 : 377,327.90 = 172,426.28 : x
  2. Step 2: Convert to fraction form
    251,551.94/377,327.90 = 172,426.28/x
  3. Step 3: Cross multiply
    251,551.94x = 377,327.90 × 172,426.28
  4. Step 4: Simplify right side
    251,551.94x = 65,061,243,388.44
  5. Step 5: Solve for x
    x = 65,061,243,388.44/251,551.94
  6. Step 6: Final answer
    x = 258,639.41

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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.