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Finding the Fourth Proportional to 400,487.83, 600,821.71 and 134,241.53

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Solution

The fourth proportional to 400,487.83, 600,821.71 and 134,241.53 is: 201,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,487.83 : 600,821.71 = 134,241.53 : x
  2. Step 2: Convert to fraction form
    400,487.83/600,821.71 = 134,241.53/x
  3. Step 3: Cross multiply
    400,487.83x = 600,821.71 × 134,241.53
  4. Step 4: Simplify right side
    400,487.83x = 80,655,222,267.90
  5. Step 5: Solve for x
    x = 80,655,222,267.90/400,487.83
  6. Step 6: Final answer
    x = 201,392.44

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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.