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Finding the Fourth Proportional to 268,365.96, 370,288.50 and 149,131.40

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Solution

The fourth proportional to 268,365.96, 370,288.50 and 149,131.40 is: 205,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,365.96 : 370,288.50 = 149,131.40 : x
  2. Step 2: Convert to fraction form
    268,365.96/370,288.50 = 149,131.40/x
  3. Step 3: Cross multiply
    268,365.96x = 370,288.50 × 149,131.40
  4. Step 4: Simplify right side
    268,365.96x = 55,221,642,408.90
  5. Step 5: Solve for x
    x = 55,221,642,408.90/268,365.96
  6. Step 6: Final answer
    x = 205,769.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.