Home / 269,076.90-403,327.35-91,419.30

Finding the Fourth Proportional to 269,076.90, 403,327.35 and 91,419.30

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Solution

The fourth proportional to 269,076.90, 403,327.35 and 91,419.30 is: 137,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,076.90 : 403,327.35 = 91,419.30 : x
  2. Step 2: Convert to fraction form
    269,076.90/403,327.35 = 91,419.30/x
  3. Step 3: Cross multiply
    269,076.90x = 403,327.35 × 91,419.30
  4. Step 4: Simplify right side
    269,076.90x = 36,871,904,007.86
  5. Step 5: Solve for x
    x = 36,871,904,007.86/269,076.90
  6. Step 6: Final answer
    x = 137,031.10

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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.