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Finding the Fourth Proportional to 453,613.80, 680,393.28 and 200,820.36

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Solution

The fourth proportional to 453,613.80, 680,393.28 and 200,820.36 is: 301,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,613.80 : 680,393.28 = 200,820.36 : x
  2. Step 2: Convert to fraction form
    453,613.80/680,393.28 = 200,820.36/x
  3. Step 3: Cross multiply
    453,613.80x = 680,393.28 × 200,820.36
  4. Step 4: Simplify right side
    453,613.80x = 136,636,823,431.18
  5. Step 5: Solve for x
    x = 136,636,823,431.18/453,613.80
  6. Step 6: Final answer
    x = 301,218.40

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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.