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Finding the Fourth Proportional to 362,504.80, 543,238.80 and 266,989.60

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Solution

The fourth proportional to 362,504.80, 543,238.80 and 266,989.60 is: 400,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,504.80 : 543,238.80 = 266,989.60 : x
  2. Step 2: Convert to fraction form
    362,504.80/543,238.80 = 266,989.60/x
  3. Step 3: Cross multiply
    362,504.80x = 543,238.80 × 266,989.60
  4. Step 4: Simplify right side
    362,504.80x = 145,039,109,916.48
  5. Step 5: Solve for x
    x = 145,039,109,916.48/362,504.80
  6. Step 6: Final answer
    x = 400,102.59

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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.