Home / 272,172.72-408,118.26-122,284.82

Finding the Fourth Proportional to 272,172.72, 408,118.26 and 122,284.82

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Solution

The fourth proportional to 272,172.72, 408,118.26 and 122,284.82 is: 183,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,172.72 : 408,118.26 = 122,284.82 : x
  2. Step 2: Convert to fraction form
    272,172.72/408,118.26 = 122,284.82/x
  3. Step 3: Cross multiply
    272,172.72x = 408,118.26 × 122,284.82
  4. Step 4: Simplify right side
    272,172.72x = 49,906,667,962.81
  5. Step 5: Solve for x
    x = 49,906,667,962.81/272,172.72
  6. Step 6: Final answer
    x = 183,363.96

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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.