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Finding the Fourth Proportional to 302,693.97, 417,720.47 and 166,728.39

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Solution

The fourth proportional to 302,693.97, 417,720.47 and 166,728.39 is: 230,086.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,693.97 : 417,720.47 = 166,728.39 : x
  2. Step 2: Convert to fraction form
    302,693.97/417,720.47 = 166,728.39/x
  3. Step 3: Cross multiply
    302,693.97x = 417,720.47 × 166,728.39
  4. Step 4: Simplify right side
    302,693.97x = 69,645,861,433.14
  5. Step 5: Solve for x
    x = 69,645,861,433.14/302,693.97
  6. Step 6: Final answer
    x = 230,086.72

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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.