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Finding the Fourth Proportional to 381,360.80, 572,624.40 and 223,896.80

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Solution

The fourth proportional to 381,360.80, 572,624.40 and 223,896.80 is: 336,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,360.80 : 572,624.40 = 223,896.80 : x
  2. Step 2: Convert to fraction form
    381,360.80/572,624.40 = 223,896.80/x
  3. Step 3: Cross multiply
    381,360.80x = 572,624.40 × 223,896.80
  4. Step 4: Simplify right side
    381,360.80x = 128,208,770,761.92
  5. Step 5: Solve for x
    x = 128,208,770,761.92/381,360.80
  6. Step 6: Final answer
    x = 336,187.60

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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.