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Finding the Fourth Proportional to 293,500.91, 440,147.67 and 139,608.78

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Solution

The fourth proportional to 293,500.91, 440,147.67 and 139,608.78 is: 209,363.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,500.91 : 440,147.67 = 139,608.78 : x
  2. Step 2: Convert to fraction form
    293,500.91/440,147.67 = 139,608.78/x
  3. Step 3: Cross multiply
    293,500.91x = 440,147.67 × 139,608.78
  4. Step 4: Simplify right side
    293,500.91x = 61,448,479,228.54
  5. Step 5: Solve for x
    x = 61,448,479,228.54/293,500.91
  6. Step 6: Final answer
    x = 209,363.85

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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.