Home / 356,313.14-491,761.06-218,467.69

Finding the Fourth Proportional to 356,313.14, 491,761.06 and 218,467.69

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Solution

The fourth proportional to 356,313.14, 491,761.06 and 218,467.69 is: 301,515.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,313.14 : 491,761.06 = 218,467.69 : x
  2. Step 2: Convert to fraction form
    356,313.14/491,761.06 = 218,467.69/x
  3. Step 3: Cross multiply
    356,313.14x = 491,761.06 × 218,467.69
  4. Step 4: Simplify right side
    356,313.14x = 107,433,902,810.15
  5. Step 5: Solve for x
    x = 107,433,902,810.15/356,313.14
  6. Step 6: Final answer
    x = 301,515.41

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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.