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Finding the Fourth Proportional to 217,353.24, 299,930.24 and 121,846.95

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Solution

The fourth proportional to 217,353.24, 299,930.24 and 121,846.95 is: 168,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,353.24 : 299,930.24 = 121,846.95 : x
  2. Step 2: Convert to fraction form
    217,353.24/299,930.24 = 121,846.95/x
  3. Step 3: Cross multiply
    217,353.24x = 299,930.24 × 121,846.95
  4. Step 4: Simplify right side
    217,353.24x = 36,545,585,261.39
  5. Step 5: Solve for x
    x = 36,545,585,261.39/217,353.24
  6. Step 6: Final answer
    x = 168,139.13

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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.