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Finding the Fourth Proportional to 272,477.54, 408,711.54 and 122,611.76

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Solution

The fourth proportional to 272,477.54, 408,711.54 and 122,611.76 is: 183,915.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,477.54 : 408,711.54 = 122,611.76 : x
  2. Step 2: Convert to fraction form
    272,477.54/408,711.54 = 122,611.76/x
  3. Step 3: Cross multiply
    272,477.54x = 408,711.54 × 122,611.76
  4. Step 4: Simplify right side
    272,477.54x = 50,112,841,251.71
  5. Step 5: Solve for x
    x = 50,112,841,251.71/272,477.54
  6. Step 6: Final answer
    x = 183,915.49

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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.