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Finding the Fourth Proportional to 217,090.68, 299,887.04 and 163,786.20

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Solution

The fourth proportional to 217,090.68, 299,887.04 and 163,786.20 is: 226,252.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,090.68 : 299,887.04 = 163,786.20 : x
  2. Step 2: Convert to fraction form
    217,090.68/299,887.04 = 163,786.20/x
  3. Step 3: Cross multiply
    217,090.68x = 299,887.04 × 163,786.20
  4. Step 4: Simplify right side
    217,090.68x = 49,117,358,710.85
  5. Step 5: Solve for x
    x = 49,117,358,710.85/217,090.68
  6. Step 6: Final answer
    x = 226,252.73

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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.