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Finding the Fourth Proportional to 260,878.53, 360,002.10 and 147,701.28

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Solution

The fourth proportional to 260,878.53, 360,002.10 and 147,701.28 is: 203,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,878.53 : 360,002.10 = 147,701.28 : x
  2. Step 2: Convert to fraction form
    260,878.53/360,002.10 = 147,701.28/x
  3. Step 3: Cross multiply
    260,878.53x = 360,002.10 × 147,701.28
  4. Step 4: Simplify right side
    260,878.53x = 53,172,770,972.69
  5. Step 5: Solve for x
    x = 53,172,770,972.69/260,878.53
  6. Step 6: Final answer
    x = 203,821.95

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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.