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Finding the Fourth Proportional to 351,732.33, 485,399.57 and 215,841.33

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Solution

The fourth proportional to 351,732.33, 485,399.57 and 215,841.33 is: 297,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,732.33 : 485,399.57 = 215,841.33 : x
  2. Step 2: Convert to fraction form
    351,732.33/485,399.57 = 215,841.33/x
  3. Step 3: Cross multiply
    351,732.33x = 485,399.57 × 215,841.33
  4. Step 4: Simplify right side
    351,732.33x = 104,769,287,691.02
  5. Step 5: Solve for x
    x = 104,769,287,691.02/351,732.33
  6. Step 6: Final answer
    x = 297,866.53

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1.5x scale

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.