Home / 217,105.58-326,158.99-208,137.67

Finding the Fourth Proportional to 217,105.58, 326,158.99 and 208,137.67

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Solution

The fourth proportional to 217,105.58, 326,158.99 and 208,137.67 is: 312,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,105.58 : 326,158.99 = 208,137.67 : x
  2. Step 2: Convert to fraction form
    217,105.58/326,158.99 = 208,137.67/x
  3. Step 3: Cross multiply
    217,105.58x = 326,158.99 × 208,137.67
  4. Step 4: Simplify right side
    217,105.58x = 67,885,970,892.41
  5. Step 5: Solve for x
    x = 67,885,970,892.41/217,105.58
  6. Step 6: Final answer
    x = 312,686.44

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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.