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Finding the Fourth Proportional to 196,493.70, 270,946.74 and 132,720.78

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Solution

The fourth proportional to 196,493.70, 270,946.74 and 132,720.78 is: 183,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,493.70 : 270,946.74 = 132,720.78 : x
  2. Step 2: Convert to fraction form
    196,493.70/270,946.74 = 132,720.78/x
  3. Step 3: Cross multiply
    196,493.70x = 270,946.74 × 132,720.78
  4. Step 4: Simplify right side
    196,493.70x = 35,960,262,671.26
  5. Step 5: Solve for x
    x = 35,960,262,671.26/196,493.70
  6. Step 6: Final answer
    x = 183,009.75

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1.5x scale

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.