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Finding the Fourth Proportional to 343,785, 515,884.88 and 146,793

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Solution

The fourth proportional to 343,785, 515,884.88 and 146,793 is: 220,278.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,785 : 515,884.88 = 146,793 : x
  2. Step 2: Convert to fraction form
    343,785/515,884.88 = 146,793/x
  3. Step 3: Cross multiply
    343,785x = 515,884.88 × 146,793
  4. Step 4: Simplify right side
    343,785x = 75,728,289,189.84
  5. Step 5: Solve for x
    x = 75,728,289,189.84/343,785
  6. Step 6: Final answer
    x = 220,278.05

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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.