Home / 213,451.37-320,280.85-100,997.62

Finding the Fourth Proportional to 213,451.37, 320,280.85 and 100,997.62

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Solution

The fourth proportional to 213,451.37, 320,280.85 and 100,997.62 is: 151,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,451.37 : 320,280.85 = 100,997.62 : x
  2. Step 2: Convert to fraction form
    213,451.37/320,280.85 = 100,997.62/x
  3. Step 3: Cross multiply
    213,451.37x = 320,280.85 × 100,997.62
  4. Step 4: Simplify right side
    213,451.37x = 32,347,605,484.74
  5. Step 5: Solve for x
    x = 32,347,605,484.74/213,451.37
  6. Step 6: Final answer
    x = 151,545.55

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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.