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Finding the Fourth Proportional to 353,480.16, 530,236.62 and 100,777.80

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Solution

The fourth proportional to 353,480.16, 530,236.62 and 100,777.80 is: 151,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,480.16 : 530,236.62 = 100,777.80 : x
  2. Step 2: Convert to fraction form
    353,480.16/530,236.62 = 100,777.80/x
  3. Step 3: Cross multiply
    353,480.16x = 530,236.62 × 100,777.80
  4. Step 4: Simplify right side
    353,480.16x = 53,436,080,043.04
  5. Step 5: Solve for x
    x = 53,436,080,043.04/353,480.16
  6. Step 6: Final answer
    x = 151,171.37

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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.