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Finding the Fourth Proportional to 306,419.04, 422,861.51 and 168,599.75

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Solution

The fourth proportional to 306,419.04, 422,861.51 and 168,599.75 is: 232,669.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,419.04 : 422,861.51 = 168,599.75 : x
  2. Step 2: Convert to fraction form
    306,419.04/422,861.51 = 168,599.75/x
  3. Step 3: Cross multiply
    306,419.04x = 422,861.51 × 168,599.75
  4. Step 4: Simplify right side
    306,419.04x = 71,294,345,084.78
  5. Step 5: Solve for x
    x = 71,294,345,084.78/306,419.04
  6. Step 6: Final answer
    x = 232,669.44

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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.