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Finding the Fourth Proportional to 455,473.28, 682,545.39 and 256,182.90

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Solution

The fourth proportional to 455,473.28, 682,545.39 and 256,182.90 is: 383,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,473.28 : 682,545.39 = 256,182.90 : x
  2. Step 2: Convert to fraction form
    455,473.28/682,545.39 = 256,182.90/x
  3. Step 3: Cross multiply
    455,473.28x = 682,545.39 × 256,182.90
  4. Step 4: Simplify right side
    455,473.28x = 174,856,457,710.92
  5. Step 5: Solve for x
    x = 174,856,457,710.92/455,473.28
  6. Step 6: Final answer
    x = 383,900.59

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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.