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Finding the Fourth Proportional to 196,270.40, 294,103.20 and 146,115.20

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Solution

The fourth proportional to 196,270.40, 294,103.20 and 146,115.20 is: 218,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,270.40 : 294,103.20 = 146,115.20 : x
  2. Step 2: Convert to fraction form
    196,270.40/294,103.20 = 146,115.20/x
  3. Step 3: Cross multiply
    196,270.40x = 294,103.20 × 146,115.20
  4. Step 4: Simplify right side
    196,270.40x = 42,972,947,888.64
  5. Step 5: Solve for x
    x = 42,972,947,888.64/196,270.40
  6. Step 6: Final answer
    x = 218,947.68

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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.