Home / 286,765.80-395,734.74-159,440.28

Finding the Fourth Proportional to 286,765.80, 395,734.74 and 159,440.28

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Solution

The fourth proportional to 286,765.80, 395,734.74 and 159,440.28 is: 220,026.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,765.80 : 395,734.74 = 159,440.28 : x
  2. Step 2: Convert to fraction form
    286,765.80/395,734.74 = 159,440.28/x
  3. Step 3: Cross multiply
    286,765.80x = 395,734.74 × 159,440.28
  4. Step 4: Simplify right side
    286,765.80x = 63,096,057,751.33
  5. Step 5: Solve for x
    x = 63,096,057,751.33/286,765.80
  6. Step 6: Final answer
    x = 220,026.44

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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.