Home / 255,904.98-352,966.05-221,852.58

Finding the Fourth Proportional to 255,904.98, 352,966.05 and 221,852.58

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Solution

The fourth proportional to 255,904.98, 352,966.05 and 221,852.58 is: 305,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,904.98 : 352,966.05 = 221,852.58 : x
  2. Step 2: Convert to fraction form
    255,904.98/352,966.05 = 221,852.58/x
  3. Step 3: Cross multiply
    255,904.98x = 352,966.05 × 221,852.58
  4. Step 4: Simplify right side
    255,904.98x = 78,306,428,844.91
  5. Step 5: Solve for x
    x = 78,306,428,844.91/255,904.98
  6. Step 6: Final answer
    x = 305,998.07

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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.