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Finding the Fourth Proportional to 265,037.49, 397,471.46 and 87,511.41

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Solution

The fourth proportional to 265,037.49, 397,471.46 and 87,511.41 is: 131,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,037.49 : 397,471.46 = 87,511.41 : x
  2. Step 2: Convert to fraction form
    265,037.49/397,471.46 = 87,511.41/x
  3. Step 3: Cross multiply
    265,037.49x = 397,471.46 × 87,511.41
  4. Step 4: Simplify right side
    265,037.49x = 34,783,287,461.80
  5. Step 5: Solve for x
    x = 34,783,287,461.80/265,037.49
  6. Step 6: Final answer
    x = 131,239.12

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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.