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Finding the Fourth Proportional to 284,545.80, 426,840.30 and 84,850.56

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Solution

The fourth proportional to 284,545.80, 426,840.30 and 84,850.56 is: 127,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,545.80 : 426,840.30 = 84,850.56 : x
  2. Step 2: Convert to fraction form
    284,545.80/426,840.30 = 84,850.56/x
  3. Step 3: Cross multiply
    284,545.80x = 426,840.30 × 84,850.56
  4. Step 4: Simplify right side
    284,545.80x = 36,217,638,485.57
  5. Step 5: Solve for x
    x = 36,217,638,485.57/284,545.80
  6. Step 6: Final answer
    x = 127,282.28

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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.