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Finding the Fourth Proportional to 303,419.56, 418,704.80 and 174,267.19

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Solution

The fourth proportional to 303,419.56, 418,704.80 and 174,267.19 is: 240,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,419.56 : 418,704.80 = 174,267.19 : x
  2. Step 2: Convert to fraction form
    303,419.56/418,704.80 = 174,267.19/x
  3. Step 3: Cross multiply
    303,419.56x = 418,704.80 × 174,267.19
  4. Step 4: Simplify right side
    303,419.56x = 72,966,505,970.65
  5. Step 5: Solve for x
    x = 72,966,505,970.65/303,419.56
  6. Step 6: Final answer
    x = 240,480.56

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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.