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Finding the Fourth Proportional to 399,777.76, 551,692.38 and 227,695.69

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Solution

The fourth proportional to 399,777.76, 551,692.38 and 227,695.69 is: 314,219.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,777.76 : 551,692.38 = 227,695.69 : x
  2. Step 2: Convert to fraction form
    399,777.76/551,692.38 = 227,695.69/x
  3. Step 3: Cross multiply
    399,777.76x = 551,692.38 × 227,695.69
  4. Step 4: Simplify right side
    399,777.76x = 125,617,977,131.84
  5. Step 5: Solve for x
    x = 125,617,977,131.84/399,777.76
  6. Step 6: Final answer
    x = 314,219.52

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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.