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Finding the Fourth Proportional to 555,226.11, 766,181.03 and 313,557.75

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Solution

The fourth proportional to 555,226.11, 766,181.03 and 313,557.75 is: 432,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,226.11 : 766,181.03 = 313,557.75 : x
  2. Step 2: Convert to fraction form
    555,226.11/766,181.03 = 313,557.75/x
  3. Step 3: Cross multiply
    555,226.11x = 766,181.03 × 313,557.75
  4. Step 4: Simplify right side
    555,226.11x = 240,241,998,291.69
  5. Step 5: Solve for x
    x = 240,241,998,291.69/555,226.11
  6. Step 6: Final answer
    x = 432,692.18

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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.