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Finding the Fourth Proportional to 217,287.92, 299,857.98 and 120,498.59

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Solution

The fourth proportional to 217,287.92, 299,857.98 and 120,498.59 is: 166,288.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,287.92 : 299,857.98 = 120,498.59 : x
  2. Step 2: Convert to fraction form
    217,287.92/299,857.98 = 120,498.59/x
  3. Step 3: Cross multiply
    217,287.92x = 299,857.98 × 120,498.59
  4. Step 4: Simplify right side
    217,287.92x = 36,132,462,290.96
  5. Step 5: Solve for x
    x = 36,132,462,290.96/217,287.92
  6. Step 6: Final answer
    x = 166,288.41

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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.