Home / 353,609.28-530,396.64-131,976

Finding the Fourth Proportional to 353,609.28, 530,396.64 and 131,976

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Solution

The fourth proportional to 353,609.28, 530,396.64 and 131,976 is: 197,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,609.28 : 530,396.64 = 131,976 : x
  2. Step 2: Convert to fraction form
    353,609.28/530,396.64 = 131,976/x
  3. Step 3: Cross multiply
    353,609.28x = 530,396.64 × 131,976
  4. Step 4: Simplify right side
    353,609.28x = 69,999,626,960.64
  5. Step 5: Solve for x
    x = 69,999,626,960.64/353,609.28
  6. Step 6: Final answer
    x = 197,957.55

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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.