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Finding the Fourth Proportional to 295,287.90, 441,765.45 and 256,278.30

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Solution

The fourth proportional to 295,287.90, 441,765.45 and 256,278.30 is: 383,405.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,287.90 : 441,765.45 = 256,278.30 : x
  2. Step 2: Convert to fraction form
    295,287.90/441,765.45 = 256,278.30/x
  3. Step 3: Cross multiply
    295,287.90x = 441,765.45 × 256,278.30
  4. Step 4: Simplify right side
    295,287.90x = 113,214,898,524.74
  5. Step 5: Solve for x
    x = 113,214,898,524.74/295,287.90
  6. Step 6: Final answer
    x = 383,405.14

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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.