Home / 356,377.28-491,800.61-213,137.33

Finding the Fourth Proportional to 356,377.28, 491,800.61 and 213,137.33

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Solution

The fourth proportional to 356,377.28, 491,800.61 and 213,137.33 is: 294,129.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,377.28 : 491,800.61 = 213,137.33 : x
  2. Step 2: Convert to fraction form
    356,377.28/491,800.61 = 213,137.33/x
  3. Step 3: Cross multiply
    356,377.28x = 491,800.61 × 213,137.33
  4. Step 4: Simplify right side
    356,377.28x = 104,821,066,981.61
  5. Step 5: Solve for x
    x = 104,821,066,981.61/356,377.28
  6. Step 6: Final answer
    x = 294,129.49

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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.