Home / 279,897.24-419,927.64-90,353.16

Finding the Fourth Proportional to 279,897.24, 419,927.64 and 90,353.16

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Solution

The fourth proportional to 279,897.24, 419,927.64 and 90,353.16 is: 135,556.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,897.24 : 419,927.64 = 90,353.16 : x
  2. Step 2: Convert to fraction form
    279,897.24/419,927.64 = 90,353.16/x
  3. Step 3: Cross multiply
    279,897.24x = 419,927.64 × 90,353.16
  4. Step 4: Simplify right side
    279,897.24x = 37,941,789,245.34
  5. Step 5: Solve for x
    x = 37,941,789,245.34/279,897.24
  6. Step 6: Final answer
    x = 135,556.14

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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.