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Finding the Fourth Proportional to 217,320.34, 299,964.62 and 131,265.64

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Solution

The fourth proportional to 217,320.34, 299,964.62 and 131,265.64 is: 181,184.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,320.34 : 299,964.62 = 131,265.64 : x
  2. Step 2: Convert to fraction form
    217,320.34/299,964.62 = 131,265.64/x
  3. Step 3: Cross multiply
    217,320.34x = 299,964.62 × 131,265.64
  4. Step 4: Simplify right side
    217,320.34x = 39,375,047,821.66
  5. Step 5: Solve for x
    x = 39,375,047,821.66/217,320.34
  6. Step 6: Final answer
    x = 181,184.37

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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.