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Finding the Fourth Proportional to 279,847.44, 386,197.56 and 152,531.28

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Solution

The fourth proportional to 279,847.44, 386,197.56 and 152,531.28 is: 210,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,847.44 : 386,197.56 = 152,531.28 : x
  2. Step 2: Convert to fraction form
    279,847.44/386,197.56 = 152,531.28/x
  3. Step 3: Cross multiply
    279,847.44x = 386,197.56 × 152,531.28
  4. Step 4: Simplify right side
    279,847.44x = 58,907,208,159.68
  5. Step 5: Solve for x
    x = 58,907,208,159.68/279,847.44
  6. Step 6: Final answer
    x = 210,497.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.