Home / 373,282.43-515,107.55-212,115.11

Finding the Fourth Proportional to 373,282.43, 515,107.55 and 212,115.11

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Solution

The fourth proportional to 373,282.43, 515,107.55 and 212,115.11 is: 292,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,282.43 : 515,107.55 = 212,115.11 : x
  2. Step 2: Convert to fraction form
    373,282.43/515,107.55 = 212,115.11/x
  3. Step 3: Cross multiply
    373,282.43x = 515,107.55 × 212,115.11
  4. Step 4: Simplify right side
    373,282.43x = 109,262,090,993.97
  5. Step 5: Solve for x
    x = 109,262,090,993.97/373,282.43
  6. Step 6: Final answer
    x = 292,706.23

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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.