Home / 213,430.85-320,201.63-113,508.88

Finding the Fourth Proportional to 213,430.85, 320,201.63 and 113,508.88

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Solution

The fourth proportional to 213,430.85, 320,201.63 and 113,508.88 is: 170,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,430.85 : 320,201.63 = 113,508.88 : x
  2. Step 2: Convert to fraction form
    213,430.85/320,201.63 = 113,508.88/x
  3. Step 3: Cross multiply
    213,430.85x = 320,201.63 × 113,508.88
  4. Step 4: Simplify right side
    213,430.85x = 36,345,728,395.47
  5. Step 5: Solve for x
    x = 36,345,728,395.47/213,430.85
  6. Step 6: Final answer
    x = 170,292.76

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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.