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Finding the Fourth Proportional to 492,856.22, 739,375.32 and 155,981.54

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Solution

The fourth proportional to 492,856.22, 739,375.32 and 155,981.54 is: 234,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,856.22 : 739,375.32 = 155,981.54 : x
  2. Step 2: Convert to fraction form
    492,856.22/739,375.32 = 155,981.54/x
  3. Step 3: Cross multiply
    492,856.22x = 739,375.32 × 155,981.54
  4. Step 4: Simplify right side
    492,856.22x = 115,328,901,051.59
  5. Step 5: Solve for x
    x = 115,328,901,051.59/492,856.22
  6. Step 6: Final answer
    x = 234,001.11

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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.