Home / 286,820.62-395,822.10-157,764.58

Finding the Fourth Proportional to 286,820.62, 395,822.10 and 157,764.58

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Solution

The fourth proportional to 286,820.62, 395,822.10 and 157,764.58 is: 217,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,820.62 : 395,822.10 = 157,764.58 : x
  2. Step 2: Convert to fraction form
    286,820.62/395,822.10 = 157,764.58/x
  3. Step 3: Cross multiply
    286,820.62x = 395,822.10 × 157,764.58
  4. Step 4: Simplify right side
    286,820.62x = 62,446,707,361.22
  5. Step 5: Solve for x
    x = 62,446,707,361.22/286,820.62
  6. Step 6: Final answer
    x = 217,720.43

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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.