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Finding the Fourth Proportional to 426,182.80, 640,224.60 and 356,198.80

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Solution

The fourth proportional to 426,182.80, 640,224.60 and 356,198.80 is: 535,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,182.80 : 640,224.60 = 356,198.80 : x
  2. Step 2: Convert to fraction form
    426,182.80/640,224.60 = 356,198.80/x
  3. Step 3: Cross multiply
    426,182.80x = 640,224.60 × 356,198.80
  4. Step 4: Simplify right side
    426,182.80x = 228,047,234,250.48
  5. Step 5: Solve for x
    x = 228,047,234,250.48/426,182.80
  6. Step 6: Final answer
    x = 535,092.53

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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.