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Finding the Fourth Proportional to 268,171.96, 402,309.80 and 101,947

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Solution

The fourth proportional to 268,171.96, 402,309.80 and 101,947 is: 152,940.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,171.96 : 402,309.80 = 101,947 : x
  2. Step 2: Convert to fraction form
    268,171.96/402,309.80 = 101,947/x
  3. Step 3: Cross multiply
    268,171.96x = 402,309.80 × 101,947
  4. Step 4: Simplify right side
    268,171.96x = 41,014,277,180.60
  5. Step 5: Solve for x
    x = 41,014,277,180.60/268,171.96
  6. Step 6: Final answer
    x = 152,940.21

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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.