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Finding the Fourth Proportional to 304,319.76, 419,912.28 and 191,295.60

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Solution

The fourth proportional to 304,319.76, 419,912.28 and 191,295.60 is: 263,957.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,319.76 : 419,912.28 = 191,295.60 : x
  2. Step 2: Convert to fraction form
    304,319.76/419,912.28 = 191,295.60/x
  3. Step 3: Cross multiply
    304,319.76x = 419,912.28 × 191,295.60
  4. Step 4: Simplify right side
    304,319.76x = 80,327,371,549.97
  5. Step 5: Solve for x
    x = 80,327,371,549.97/304,319.76
  6. Step 6: Final answer
    x = 263,957.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.