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Finding the Fourth Proportional to 213,545.80, 320,232.30 and 73,232.20

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Solution

The fourth proportional to 213,545.80, 320,232.30 and 73,232.20 is: 109,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,545.80 : 320,232.30 = 73,232.20 : x
  2. Step 2: Convert to fraction form
    213,545.80/320,232.30 = 73,232.20/x
  3. Step 3: Cross multiply
    213,545.80x = 320,232.30 × 73,232.20
  4. Step 4: Simplify right side
    213,545.80x = 23,451,315,840.06
  5. Step 5: Solve for x
    x = 23,451,315,840.06/213,545.80
  6. Step 6: Final answer
    x = 109,818.67

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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.