Home / 268,864.11-403,331.40-91,323.45

Finding the Fourth Proportional to 268,864.11, 403,331.40 and 91,323.45

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Solution

The fourth proportional to 268,864.11, 403,331.40 and 91,323.45 is: 136,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,864.11 : 403,331.40 = 91,323.45 : x
  2. Step 2: Convert to fraction form
    268,864.11/403,331.40 = 91,323.45/x
  3. Step 3: Cross multiply
    268,864.11x = 403,331.40 × 91,323.45
  4. Step 4: Simplify right side
    268,864.11x = 36,833,614,941.33
  5. Step 5: Solve for x
    x = 36,833,614,941.33/268,864.11
  6. Step 6: Final answer
    x = 136,997.14

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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.