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Finding the Fourth Proportional to 220,846.40, 331,269.60 and 146,196.80

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Solution

The fourth proportional to 220,846.40, 331,269.60 and 146,196.80 is: 219,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,846.40 : 331,269.60 = 146,196.80 : x
  2. Step 2: Convert to fraction form
    220,846.40/331,269.60 = 146,196.80/x
  3. Step 3: Cross multiply
    220,846.40x = 331,269.60 × 146,196.80
  4. Step 4: Simplify right side
    220,846.40x = 48,430,555,457.28
  5. Step 5: Solve for x
    x = 48,430,555,457.28/220,846.40
  6. Step 6: Final answer
    x = 219,295.20

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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.