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Finding the Fourth Proportional to 636,713.64, 955,188.58 and 210,279.01

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Solution

The fourth proportional to 636,713.64, 955,188.58 and 210,279.01 is: 315,457.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,713.64 : 955,188.58 = 210,279.01 : x
  2. Step 2: Convert to fraction form
    636,713.64/955,188.58 = 210,279.01/x
  3. Step 3: Cross multiply
    636,713.64x = 955,188.58 × 210,279.01
  4. Step 4: Simplify right side
    636,713.64x = 200,856,108,965.71
  5. Step 5: Solve for x
    x = 200,856,108,965.71/636,713.64
  6. Step 6: Final answer
    x = 315,457.52

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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.