Home / 349,354.22-481,766.33-221,808.38

Finding the Fourth Proportional to 349,354.22, 481,766.33 and 221,808.38

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Solution

The fourth proportional to 349,354.22, 481,766.33 and 221,808.38 is: 305,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,354.22 : 481,766.33 = 221,808.38 : x
  2. Step 2: Convert to fraction form
    349,354.22/481,766.33 = 221,808.38/x
  3. Step 3: Cross multiply
    349,354.22x = 481,766.33 × 221,808.38
  4. Step 4: Simplify right side
    349,354.22x = 106,859,807,341.54
  5. Step 5: Solve for x
    x = 106,859,807,341.54/349,354.22
  6. Step 6: Final answer
    x = 305,878.11

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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.