Home / 373,639.11-515,633.32-212,517.33

Finding the Fourth Proportional to 373,639.11, 515,633.32 and 212,517.33

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Solution

The fourth proportional to 373,639.11, 515,633.32 and 212,517.33 is: 293,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,639.11 : 515,633.32 = 212,517.33 : x
  2. Step 2: Convert to fraction form
    373,639.11/515,633.32 = 212,517.33/x
  3. Step 3: Cross multiply
    373,639.11x = 515,633.32 × 212,517.33
  4. Step 4: Simplify right side
    373,639.11x = 109,581,016,425.44
  5. Step 5: Solve for x
    x = 109,581,016,425.44/373,639.11
  6. Step 6: Final answer
    x = 293,280.37

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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.