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Finding the Fourth Proportional to 268,499.69, 370,519.61 and 147,633.78

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Solution

The fourth proportional to 268,499.69, 370,519.61 and 147,633.78 is: 203,729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,499.69 : 370,519.61 = 147,633.78 : x
  2. Step 2: Convert to fraction form
    268,499.69/370,519.61 = 147,633.78/x
  3. Step 3: Cross multiply
    268,499.69x = 370,519.61 × 147,633.78
  4. Step 4: Simplify right side
    268,499.69x = 54,701,209,850.26
  5. Step 5: Solve for x
    x = 54,701,209,850.26/268,499.69
  6. Step 6: Final answer
    x = 203,729.14

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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.