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Finding the Fourth Proportional to 285,224.99, 427,222.40 and 268,456.56

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Solution

The fourth proportional to 285,224.99, 427,222.40 and 268,456.56 is: 402,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,224.99 : 427,222.40 = 268,456.56 : x
  2. Step 2: Convert to fraction form
    285,224.99/427,222.40 = 268,456.56/x
  3. Step 3: Cross multiply
    285,224.99x = 427,222.40 × 268,456.56
  4. Step 4: Simplify right side
    285,224.99x = 114,690,654,516.66
  5. Step 5: Solve for x
    x = 114,690,654,516.66/285,224.99
  6. Step 6: Final answer
    x = 402,105.92

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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.