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Finding the Fourth Proportional to 191,863.46, 264,875.37 and 115,399.62

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Solution

The fourth proportional to 191,863.46, 264,875.37 and 115,399.62 is: 159,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,863.46 : 264,875.37 = 115,399.62 : x
  2. Step 2: Convert to fraction form
    191,863.46/264,875.37 = 115,399.62/x
  3. Step 3: Cross multiply
    191,863.46x = 264,875.37 × 115,399.62
  4. Step 4: Simplify right side
    191,863.46x = 30,566,517,478.11
  5. Step 5: Solve for x
    x = 30,566,517,478.11/191,863.46
  6. Step 6: Final answer
    x = 159,313.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.