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Finding the Fourth Proportional to 251,356.47, 347,224.41 and 228,655.41

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Solution

The fourth proportional to 251,356.47, 347,224.41 and 228,655.41 is: 315,865.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,356.47 : 347,224.41 = 228,655.41 : x
  2. Step 2: Convert to fraction form
    251,356.47/347,224.41 = 228,655.41/x
  3. Step 3: Cross multiply
    251,356.47x = 347,224.41 × 228,655.41
  4. Step 4: Simplify right side
    251,356.47x = 79,394,739,830.56
  5. Step 5: Solve for x
    x = 79,394,739,830.56/251,356.47
  6. Step 6: Final answer
    x = 315,865.11

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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.