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Finding the Fourth Proportional to 266,102.80, 398,002.20 and 238,224.40

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Solution

The fourth proportional to 266,102.80, 398,002.20 and 238,224.40 is: 356,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,102.80 : 398,002.20 = 238,224.40 : x
  2. Step 2: Convert to fraction form
    266,102.80/398,002.20 = 238,224.40/x
  3. Step 3: Cross multiply
    266,102.80x = 398,002.20 × 238,224.40
  4. Step 4: Simplify right side
    266,102.80x = 94,813,835,293.68
  5. Step 5: Solve for x
    x = 94,813,835,293.68/266,102.80
  6. Step 6: Final answer
    x = 356,305.29

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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.