Home / 347,244.80-520,867.20-305,772.80

Finding the Fourth Proportional to 347,244.80, 520,867.20 and 305,772.80

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Solution

The fourth proportional to 347,244.80, 520,867.20 and 305,772.80 is: 458,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,244.80 : 520,867.20 = 305,772.80 : x
  2. Step 2: Convert to fraction form
    347,244.80/520,867.20 = 305,772.80/x
  3. Step 3: Cross multiply
    347,244.80x = 520,867.20 × 305,772.80
  4. Step 4: Simplify right side
    347,244.80x = 159,267,022,172.16
  5. Step 5: Solve for x
    x = 159,267,022,172.16/347,244.80
  6. Step 6: Final answer
    x = 458,659.20

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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.