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Finding the Fourth Proportional to 217,408.70, 299,952.27 and 131,335.46

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Solution

The fourth proportional to 217,408.70, 299,952.27 and 131,335.46 is: 181,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,408.70 : 299,952.27 = 131,335.46 : x
  2. Step 2: Convert to fraction form
    217,408.70/299,952.27 = 131,335.46/x
  3. Step 3: Cross multiply
    217,408.70x = 299,952.27 × 131,335.46
  4. Step 4: Simplify right side
    217,408.70x = 39,394,369,358.49
  5. Step 5: Solve for x
    x = 39,394,369,358.49/217,408.70
  6. Step 6: Final answer
    x = 181,199.60

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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.