Home / 260,076.55-390,212.03-102,414.91

Finding the Fourth Proportional to 260,076.55, 390,212.03 and 102,414.91

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Solution

The fourth proportional to 260,076.55, 390,212.03 and 102,414.91 is: 153,660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,076.55 : 390,212.03 = 102,414.91 : x
  2. Step 2: Convert to fraction form
    260,076.55/390,212.03 = 102,414.91/x
  3. Step 3: Cross multiply
    260,076.55x = 390,212.03 × 102,414.91
  4. Step 4: Simplify right side
    260,076.55x = 39,963,529,933.37
  5. Step 5: Solve for x
    x = 39,963,529,933.37/260,076.55
  6. Step 6: Final answer
    x = 153,660.64

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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.