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Finding the Fourth Proportional to 196,278.80, 275,412.40 and 196,278.80

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Solution

The fourth proportional to 196,278.80, 275,412.40 and 196,278.80 is: 275,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,278.80 : 275,412.40 = 196,278.80 : x
  2. Step 2: Convert to fraction form
    196,278.80/275,412.40 = 196,278.80/x
  3. Step 3: Cross multiply
    196,278.80x = 275,412.40 × 196,278.80
  4. Step 4: Simplify right side
    196,278.80x = 54,057,615,377.12
  5. Step 5: Solve for x
    x = 54,057,615,377.12/196,278.80
  6. Step 6: Final answer
    x = 275,412.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.