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Finding the Fourth Proportional to 453,996.98, 680,993.64 and 138,452.97

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Solution

The fourth proportional to 453,996.98, 680,993.64 and 138,452.97 is: 207,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,996.98 : 680,993.64 = 138,452.97 : x
  2. Step 2: Convert to fraction form
    453,996.98/680,993.64 = 138,452.97/x
  3. Step 3: Cross multiply
    453,996.98x = 680,993.64 × 138,452.97
  4. Step 4: Simplify right side
    453,996.98x = 94,285,592,009.11
  5. Step 5: Solve for x
    x = 94,285,592,009.11/453,996.98
  6. Step 6: Final answer
    x = 207,678.90

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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.