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Finding the Fourth Proportional to 398,848.75, 598,272.82 and 118,366

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Solution

The fourth proportional to 398,848.75, 598,272.82 and 118,366 is: 177,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,848.75 : 598,272.82 = 118,366 : x
  2. Step 2: Convert to fraction form
    398,848.75/598,272.82 = 118,366/x
  3. Step 3: Cross multiply
    398,848.75x = 598,272.82 × 118,366
  4. Step 4: Simplify right side
    398,848.75x = 70,815,160,612.12
  5. Step 5: Solve for x
    x = 70,815,160,612.12/398,848.75
  6. Step 6: Final answer
    x = 177,548.91

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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.