Home / 213,430.35-320,200.88-113,508.38

Finding the Fourth Proportional to 213,430.35, 320,200.88 and 113,508.38

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Solution

The fourth proportional to 213,430.35, 320,200.88 and 113,508.38 is: 170,292.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,430.35 : 320,200.88 = 113,508.38 : x
  2. Step 2: Convert to fraction form
    213,430.35/320,200.88 = 113,508.38/x
  3. Step 3: Cross multiply
    213,430.35x = 320,200.88 × 113,508.38
  4. Step 4: Simplify right side
    213,430.35x = 36,345,483,163.37
  5. Step 5: Solve for x
    x = 36,345,483,163.37/213,430.35
  6. Step 6: Final answer
    x = 170,292.01

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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.