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Finding the Fourth Proportional to 281,468.77, 388,419.38 and 160,607.86

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Solution

The fourth proportional to 281,468.77, 388,419.38 and 160,607.86 is: 221,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,468.77 : 388,419.38 = 160,607.86 : x
  2. Step 2: Convert to fraction form
    281,468.77/388,419.38 = 160,607.86/x
  3. Step 3: Cross multiply
    281,468.77x = 388,419.38 × 160,607.86
  4. Step 4: Simplify right side
    281,468.77x = 62,383,203,630.24
  5. Step 5: Solve for x
    x = 62,383,203,630.24/281,468.77
  6. Step 6: Final answer
    x = 221,634.55

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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.