Home / 240,288.56-331,592.64-138,316.04

Finding the Fourth Proportional to 240,288.56, 331,592.64 and 138,316.04

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Solution

The fourth proportional to 240,288.56, 331,592.64 and 138,316.04 is: 190,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,288.56 : 331,592.64 = 138,316.04 : x
  2. Step 2: Convert to fraction form
    240,288.56/331,592.64 = 138,316.04/x
  3. Step 3: Cross multiply
    240,288.56x = 331,592.64 × 138,316.04
  4. Step 4: Simplify right side
    240,288.56x = 45,864,580,857.95
  5. Step 5: Solve for x
    x = 45,864,580,857.95/240,288.56
  6. Step 6: Final answer
    x = 190,872.93

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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.