Home / 212,935.40-319,198.30-165,524.20

Finding the Fourth Proportional to 212,935.40, 319,198.30 and 165,524.20

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Solution

The fourth proportional to 212,935.40, 319,198.30 and 165,524.20 is: 248,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,935.40 : 319,198.30 = 165,524.20 : x
  2. Step 2: Convert to fraction form
    212,935.40/319,198.30 = 165,524.20/x
  3. Step 3: Cross multiply
    212,935.40x = 319,198.30 × 165,524.20
  4. Step 4: Simplify right side
    212,935.40x = 52,835,043,248.86
  5. Step 5: Solve for x
    x = 52,835,043,248.86/212,935.40
  6. Step 6: Final answer
    x = 248,127.10

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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.