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Finding the Fourth Proportional to 146,809.20, 220,213.80 and 53,302.80

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Solution

The fourth proportional to 146,809.20, 220,213.80 and 53,302.80 is: 79,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,809.20 : 220,213.80 = 53,302.80 : x
  2. Step 2: Convert to fraction form
    146,809.20/220,213.80 = 53,302.80/x
  3. Step 3: Cross multiply
    146,809.20x = 220,213.80 × 53,302.80
  4. Step 4: Simplify right side
    146,809.20x = 11,738,012,138.64
  5. Step 5: Solve for x
    x = 11,738,012,138.64/146,809.20
  6. Step 6: Final answer
    x = 79,954.20

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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.