Home / 286,400.12-395,242.08-159,087.56

Finding the Fourth Proportional to 286,400.12, 395,242.08 and 159,087.56

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Solution

The fourth proportional to 286,400.12, 395,242.08 and 159,087.56 is: 219,546.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,400.12 : 395,242.08 = 159,087.56 : x
  2. Step 2: Convert to fraction form
    286,400.12/395,242.08 = 159,087.56/x
  3. Step 3: Cross multiply
    286,400.12x = 395,242.08 × 159,087.56
  4. Step 4: Simplify right side
    286,400.12x = 62,878,098,116.52
  5. Step 5: Solve for x
    x = 62,878,098,116.52/286,400.12
  6. Step 6: Final answer
    x = 219,546.34

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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.