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Finding the Fourth Proportional to 272,511.90, 381,827.70 and 272,511.90

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Solution

The fourth proportional to 272,511.90, 381,827.70 and 272,511.90 is: 381,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,511.90 : 381,827.70 = 272,511.90 : x
  2. Step 2: Convert to fraction form
    272,511.90/381,827.70 = 272,511.90/x
  3. Step 3: Cross multiply
    272,511.90x = 381,827.70 × 272,511.90
  4. Step 4: Simplify right side
    272,511.90x = 104,052,591,999.63
  5. Step 5: Solve for x
    x = 104,052,591,999.63/272,511.90
  6. Step 6: Final answer
    x = 381,827.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.