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Finding the Fourth Proportional to 481,346.04, 664,432.02 and 280,142.04

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Solution

The fourth proportional to 481,346.04, 664,432.02 and 280,142.04 is: 386,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,346.04 : 664,432.02 = 280,142.04 : x
  2. Step 2: Convert to fraction form
    481,346.04/664,432.02 = 280,142.04/x
  3. Step 3: Cross multiply
    481,346.04x = 664,432.02 × 280,142.04
  4. Step 4: Simplify right side
    481,346.04x = 186,135,341,524.12
  5. Step 5: Solve for x
    x = 186,135,341,524.12/481,346.04
  6. Step 6: Final answer
    x = 386,697.56

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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.