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Finding the Fourth Proportional to 303,308.25, 418,565.39 and 169,172.25

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Solution

The fourth proportional to 303,308.25, 418,565.39 and 169,172.25 is: 233,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,308.25 : 418,565.39 = 169,172.25 : x
  2. Step 2: Convert to fraction form
    303,308.25/418,565.39 = 169,172.25/x
  3. Step 3: Cross multiply
    303,308.25x = 418,565.39 × 169,172.25
  4. Step 4: Simplify right side
    303,308.25x = 70,809,647,952.57
  5. Step 5: Solve for x
    x = 70,809,647,952.57/303,308.25
  6. Step 6: Final answer
    x = 233,457.71

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1.5x scale

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.