Home / 260,076.05-390,211.28-102,414.41

Finding the Fourth Proportional to 260,076.05, 390,211.28 and 102,414.41

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Solution

The fourth proportional to 260,076.05, 390,211.28 and 102,414.41 is: 153,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,076.05 : 390,211.28 = 102,414.41 : x
  2. Step 2: Convert to fraction form
    260,076.05/390,211.28 = 102,414.41/x
  3. Step 3: Cross multiply
    260,076.05x = 390,211.28 × 102,414.41
  4. Step 4: Simplify right side
    260,076.05x = 39,963,257,504.47
  5. Step 5: Solve for x
    x = 39,963,257,504.47/260,076.05
  6. Step 6: Final answer
    x = 153,659.89

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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.