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Finding the Fourth Proportional to 284,561.80, 426,864.30 and 84,866.56

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Solution

The fourth proportional to 284,561.80, 426,864.30 and 84,866.56 is: 127,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,561.80 : 426,864.30 = 84,866.56 : x
  2. Step 2: Convert to fraction form
    284,561.80/426,864.30 = 84,866.56/x
  3. Step 3: Cross multiply
    284,561.80x = 426,864.30 × 84,866.56
  4. Step 4: Simplify right side
    284,561.80x = 36,226,504,727.81
  5. Step 5: Solve for x
    x = 36,226,504,727.81/284,561.80
  6. Step 6: Final answer
    x = 127,306.28

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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.