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Finding the Fourth Proportional to 194,446.16, 291,461.24 and 138,873.68

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Solution

The fourth proportional to 194,446.16, 291,461.24 and 138,873.68 is: 208,161.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,446.16 : 291,461.24 = 138,873.68 : x
  2. Step 2: Convert to fraction form
    194,446.16/291,461.24 = 138,873.68/x
  3. Step 3: Cross multiply
    194,446.16x = 291,461.24 × 138,873.68
  4. Step 4: Simplify right side
    194,446.16x = 40,476,294,976.16
  5. Step 5: Solve for x
    x = 40,476,294,976.16/194,446.16
  6. Step 6: Final answer
    x = 208,161.97

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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.