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Finding the Fourth Proportional to 636,714.14, 955,189.34 and 210,279.51

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Solution

The fourth proportional to 636,714.14, 955,189.34 and 210,279.51 is: 315,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,714.14 : 955,189.34 = 210,279.51 : x
  2. Step 2: Convert to fraction form
    636,714.14/955,189.34 = 210,279.51/x
  3. Step 3: Cross multiply
    636,714.14x = 955,189.34 × 210,279.51
  4. Step 4: Simplify right side
    636,714.14x = 200,856,745,321.03
  5. Step 5: Solve for x
    x = 200,856,745,321.03/636,714.14
  6. Step 6: Final answer
    x = 315,458.28

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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.