Home / 215,248.78-322,428.48-126,234.22

Finding the Fourth Proportional to 215,248.78, 322,428.48 and 126,234.22

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Solution

The fourth proportional to 215,248.78, 322,428.48 and 126,234.22 is: 189,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,248.78 : 322,428.48 = 126,234.22 : x
  2. Step 2: Convert to fraction form
    215,248.78/322,428.48 = 126,234.22/x
  3. Step 3: Cross multiply
    215,248.78x = 322,428.48 × 126,234.22
  4. Step 4: Simplify right side
    215,248.78x = 40,701,507,678.59
  5. Step 5: Solve for x
    x = 40,701,507,678.59/215,248.78
  6. Step 6: Final answer
    x = 189,090.54

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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.