Home / 402,977.93-556,087.58-221,660.59

Finding the Fourth Proportional to 402,977.93, 556,087.58 and 221,660.59

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Solution

The fourth proportional to 402,977.93, 556,087.58 and 221,660.59 is: 305,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,977.93 : 556,087.58 = 221,660.59 : x
  2. Step 2: Convert to fraction form
    402,977.93/556,087.58 = 221,660.59/x
  3. Step 3: Cross multiply
    402,977.93x = 556,087.58 × 221,660.59
  4. Step 4: Simplify right side
    402,977.93x = 123,262,697,185.73
  5. Step 5: Solve for x
    x = 123,262,697,185.73/402,977.93
  6. Step 6: Final answer
    x = 305,879.52

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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.