Home / 272,007.20-407,816.40-122,124.80

Finding the Fourth Proportional to 272,007.20, 407,816.40 and 122,124.80

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Solution

The fourth proportional to 272,007.20, 407,816.40 and 122,124.80 is: 183,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,007.20 : 407,816.40 = 122,124.80 : x
  2. Step 2: Convert to fraction form
    272,007.20/407,816.40 = 122,124.80/x
  3. Step 3: Cross multiply
    272,007.20x = 407,816.40 × 122,124.80
  4. Step 4: Simplify right side
    272,007.20x = 49,804,496,286.72
  5. Step 5: Solve for x
    x = 49,804,496,286.72/272,007.20
  6. Step 6: Final answer
    x = 183,099.92

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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.