Home / 404,799.23-558,645.69-221,054.89

Finding the Fourth Proportional to 404,799.23, 558,645.69 and 221,054.89

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Solution

The fourth proportional to 404,799.23, 558,645.69 and 221,054.89 is: 305,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,799.23 : 558,645.69 = 221,054.89 : x
  2. Step 2: Convert to fraction form
    404,799.23/558,645.69 = 221,054.89/x
  3. Step 3: Cross multiply
    404,799.23x = 558,645.69 × 221,054.89
  4. Step 4: Simplify right side
    404,799.23x = 123,491,361,551.92
  5. Step 5: Solve for x
    x = 123,491,361,551.92/404,799.23
  6. Step 6: Final answer
    x = 305,068.17

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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.