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Finding the Fourth Proportional to 279,585.28, 383,657.60 and 254,241.28

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Solution

The fourth proportional to 279,585.28, 383,657.60 and 254,241.28 is: 348,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,585.28 : 383,657.60 = 254,241.28 : x
  2. Step 2: Convert to fraction form
    279,585.28/383,657.60 = 254,241.28/x
  3. Step 3: Cross multiply
    279,585.28x = 383,657.60 × 254,241.28
  4. Step 4: Simplify right side
    279,585.28x = 97,541,599,305.73
  5. Step 5: Solve for x
    x = 97,541,599,305.73/279,585.28
  6. Step 6: Final answer
    x = 348,879.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.