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Finding the Fourth Proportional to 284,544.80, 426,838.80 and 84,849.56

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Solution

The fourth proportional to 284,544.80, 426,838.80 and 84,849.56 is: 127,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,544.80 : 426,838.80 = 84,849.56 : x
  2. Step 2: Convert to fraction form
    284,544.80/426,838.80 = 84,849.56/x
  3. Step 3: Cross multiply
    284,544.80x = 426,838.80 × 84,849.56
  4. Step 4: Simplify right side
    284,544.80x = 36,217,084,370.93
  5. Step 5: Solve for x
    x = 36,217,084,370.93/284,544.80
  6. Step 6: Final answer
    x = 127,280.78

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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.