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Finding the Fourth Proportional to 268,353, 370,327.86 and 149,121

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Solution

The fourth proportional to 268,353, 370,327.86 and 149,121 is: 205,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,353 : 370,327.86 = 149,121 : x
  2. Step 2: Convert to fraction form
    268,353/370,327.86 = 149,121/x
  3. Step 3: Cross multiply
    268,353x = 370,327.86 × 149,121
  4. Step 4: Simplify right side
    268,353x = 55,223,660,811.06
  5. Step 5: Solve for x
    x = 55,223,660,811.06/268,353
  6. Step 6: Final answer
    x = 205,787.38

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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.