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Finding the Fourth Proportional to 217,400.70, 326,101.05 and 92,984.70

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Solution

The fourth proportional to 217,400.70, 326,101.05 and 92,984.70 is: 139,477.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,400.70 : 326,101.05 = 92,984.70 : x
  2. Step 2: Convert to fraction form
    217,400.70/326,101.05 = 92,984.70/x
  3. Step 3: Cross multiply
    217,400.70x = 326,101.05 × 92,984.70
  4. Step 4: Simplify right side
    217,400.70x = 30,322,408,303.94
  5. Step 5: Solve for x
    x = 30,322,408,303.94/217,400.70
  6. Step 6: Final answer
    x = 139,477.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.