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Finding the Fourth Proportional to 196,296.48, 294,444.72 and 129,720.96

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Solution

The fourth proportional to 196,296.48, 294,444.72 and 129,720.96 is: 194,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,296.48 : 294,444.72 = 129,720.96 : x
  2. Step 2: Convert to fraction form
    196,296.48/294,444.72 = 129,720.96/x
  3. Step 3: Cross multiply
    196,296.48x = 294,444.72 × 129,720.96
  4. Step 4: Simplify right side
    196,296.48x = 38,195,651,745.33
  5. Step 5: Solve for x
    x = 38,195,651,745.33/196,296.48
  6. Step 6: Final answer
    x = 194,581.44

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1.5x scale

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.