Home / 213,225.48-320,031.68-113,469.66

Finding the Fourth Proportional to 213,225.48, 320,031.68 and 113,469.66

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Solution

The fourth proportional to 213,225.48, 320,031.68 and 113,469.66 is: 170,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,225.48 : 320,031.68 = 113,469.66 : x
  2. Step 2: Convert to fraction form
    213,225.48/320,031.68 = 113,469.66/x
  3. Step 3: Cross multiply
    213,225.48x = 320,031.68 × 113,469.66
  4. Step 4: Simplify right side
    213,225.48x = 36,313,885,351.48
  5. Step 5: Solve for x
    x = 36,313,885,351.48/213,225.48
  6. Step 6: Final answer
    x = 170,307.44

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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.