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Finding the Fourth Proportional to 295,305.40, 441,791.70 and 256,295.80

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Solution

The fourth proportional to 295,305.40, 441,791.70 and 256,295.80 is: 383,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,305.40 : 441,791.70 = 256,295.80 : x
  2. Step 2: Convert to fraction form
    295,305.40/441,791.70 = 256,295.80/x
  3. Step 3: Cross multiply
    295,305.40x = 441,791.70 × 256,295.80
  4. Step 4: Simplify right side
    295,305.40x = 113,229,357,184.86
  5. Step 5: Solve for x
    x = 113,229,357,184.86/295,305.40
  6. Step 6: Final answer
    x = 383,431.38

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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.