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Finding the Fourth Proportional to 272,037.74, 408,056.09 and 72,358.34

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Solution

The fourth proportional to 272,037.74, 408,056.09 and 72,358.34 is: 108,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,037.74 : 408,056.09 = 72,358.34 : x
  2. Step 2: Convert to fraction form
    272,037.74/408,056.09 = 72,358.34/x
  3. Step 3: Cross multiply
    272,037.74x = 408,056.09 × 72,358.34
  4. Step 4: Simplify right side
    272,037.74x = 29,526,258,897.22
  5. Step 5: Solve for x
    x = 29,526,258,897.22/272,037.74
  6. Step 6: Final answer
    x = 108,537.36

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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.