Home / 231,215.15-346,850.52-81,424.49

Finding the Fourth Proportional to 231,215.15, 346,850.52 and 81,424.49

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Solution

The fourth proportional to 231,215.15, 346,850.52 and 81,424.49 is: 122,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,215.15 : 346,850.52 = 81,424.49 : x
  2. Step 2: Convert to fraction form
    231,215.15/346,850.52 = 81,424.49/x
  3. Step 3: Cross multiply
    231,215.15x = 346,850.52 × 81,424.49
  4. Step 4: Simplify right side
    231,215.15x = 28,242,124,962.98
  5. Step 5: Solve for x
    x = 28,242,124,962.98/231,215.15
  6. Step 6: Final answer
    x = 122,146.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.