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Finding the Fourth Proportional to 268,318.56, 370,214.64 and 149,086.56

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Solution

The fourth proportional to 268,318.56, 370,214.64 and 149,086.56 is: 205,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,318.56 : 370,214.64 = 149,086.56 : x
  2. Step 2: Convert to fraction form
    268,318.56/370,214.64 = 149,086.56/x
  3. Step 3: Cross multiply
    268,318.56x = 370,214.64 × 149,086.56
  4. Step 4: Simplify right side
    268,318.56x = 55,194,027,139.24
  5. Step 5: Solve for x
    x = 55,194,027,139.24/268,318.56
  6. Step 6: Final answer
    x = 205,703.35

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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.