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Finding the Fourth Proportional to 295,278.40, 442,917.60 and 275,449.60

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Solution

The fourth proportional to 295,278.40, 442,917.60 and 275,449.60 is: 413,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,278.40 : 442,917.60 = 275,449.60 : x
  2. Step 2: Convert to fraction form
    295,278.40/442,917.60 = 275,449.60/x
  3. Step 3: Cross multiply
    295,278.40x = 442,917.60 × 275,449.60
  4. Step 4: Simplify right side
    295,278.40x = 122,001,475,752.96
  5. Step 5: Solve for x
    x = 122,001,475,752.96/295,278.40
  6. Step 6: Final answer
    x = 413,174.40

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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.