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Finding the Fourth Proportional to 295,288.90, 441,766.95 and 256,279.30

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Solution

The fourth proportional to 295,288.90, 441,766.95 and 256,279.30 is: 383,406.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,288.90 : 441,766.95 = 256,279.30 : x
  2. Step 2: Convert to fraction form
    295,288.90/441,766.95 = 256,279.30/x
  3. Step 3: Cross multiply
    295,288.90x = 441,766.95 × 256,279.30
  4. Step 4: Simplify right side
    295,288.90x = 113,215,724,709.14
  5. Step 5: Solve for x
    x = 113,215,724,709.14/295,288.90
  6. Step 6: Final answer
    x = 383,406.64

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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.