Home / 356,335.05-491,555.91-220,325.52

Finding the Fourth Proportional to 356,335.05, 491,555.91 and 220,325.52

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Solution

The fourth proportional to 356,335.05, 491,555.91 and 220,325.52 is: 303,933.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,335.05 : 491,555.91 = 220,325.52 : x
  2. Step 2: Convert to fraction form
    356,335.05/491,555.91 = 220,325.52/x
  3. Step 3: Cross multiply
    356,335.05x = 491,555.91 × 220,325.52
  4. Step 4: Simplify right side
    356,335.05x = 108,302,311,479.82
  5. Step 5: Solve for x
    x = 108,302,311,479.82/356,335.05
  6. Step 6: Final answer
    x = 303,933.93

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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.