Home / 319,857.04-440,817.96-212,237.20

Finding the Fourth Proportional to 319,857.04, 440,817.96 and 212,237.20

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Solution

The fourth proportional to 319,857.04, 440,817.96 and 212,237.20 is: 292,499.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,857.04 : 440,817.96 = 212,237.20 : x
  2. Step 2: Convert to fraction form
    319,857.04/440,817.96 = 212,237.20/x
  3. Step 3: Cross multiply
    319,857.04x = 440,817.96 × 212,237.20
  4. Step 4: Simplify right side
    319,857.04x = 93,557,969,540.11
  5. Step 5: Solve for x
    x = 93,557,969,540.11/319,857.04
  6. Step 6: Final answer
    x = 292,499.33

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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.