Home / 226,817.20-312,987.40-131,330.35

Finding the Fourth Proportional to 226,817.20, 312,987.40 and 131,330.35

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Solution

The fourth proportional to 226,817.20, 312,987.40 and 131,330.35 is: 181,224.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,817.20 : 312,987.40 = 131,330.35 : x
  2. Step 2: Convert to fraction form
    226,817.20/312,987.40 = 131,330.35/x
  3. Step 3: Cross multiply
    226,817.20x = 312,987.40 × 131,330.35
  4. Step 4: Simplify right side
    226,817.20x = 41,104,744,787.59
  5. Step 5: Solve for x
    x = 41,104,744,787.59/226,817.20
  6. Step 6: Final answer
    x = 181,224.11

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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.