Home / 286,245.72-395,000.82-158,921.28

Finding the Fourth Proportional to 286,245.72, 395,000.82 and 158,921.28

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Solution

The fourth proportional to 286,245.72, 395,000.82 and 158,921.28 is: 219,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,245.72 : 395,000.82 = 158,921.28 : x
  2. Step 2: Convert to fraction form
    286,245.72/395,000.82 = 158,921.28/x
  3. Step 3: Cross multiply
    286,245.72x = 395,000.82 × 158,921.28
  4. Step 4: Simplify right side
    286,245.72x = 62,774,035,915.45
  5. Step 5: Solve for x
    x = 62,774,035,915.45/286,245.72
  6. Step 6: Final answer
    x = 219,301.22

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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.