Home / 286,751.22-395,133.59-221,826.18

Finding the Fourth Proportional to 286,751.22, 395,133.59 and 221,826.18

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Solution

The fourth proportional to 286,751.22, 395,133.59 and 221,826.18 is: 305,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,751.22 : 395,133.59 = 221,826.18 : x
  2. Step 2: Convert to fraction form
    286,751.22/395,133.59 = 221,826.18/x
  3. Step 3: Cross multiply
    286,751.22x = 395,133.59 × 221,826.18
  4. Step 4: Simplify right side
    286,751.22x = 87,650,973,750.26
  5. Step 5: Solve for x
    x = 87,650,973,750.26/286,751.22
  6. Step 6: Final answer
    x = 305,669.05

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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.