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Finding the Fourth Proportional to 196,439, 294,665.80 and 63,321.18

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Solution

The fourth proportional to 196,439, 294,665.80 and 63,321.18 is: 94,984.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,439 : 294,665.80 = 63,321.18 : x
  2. Step 2: Convert to fraction form
    196,439/294,665.80 = 63,321.18/x
  3. Step 3: Cross multiply
    196,439x = 294,665.80 × 63,321.18
  4. Step 4: Simplify right side
    196,439x = 18,658,586,161.64
  5. Step 5: Solve for x
    x = 18,658,586,161.64/196,439
  6. Step 6: Final answer
    x = 94,984.12

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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.