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Finding the Fourth Proportional to 636,713.39, 955,188.21 and 210,278.76

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Solution

The fourth proportional to 636,713.39, 955,188.21 and 210,278.76 is: 315,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,713.39 : 955,188.21 = 210,278.76 : x
  2. Step 2: Convert to fraction form
    636,713.39/955,188.21 = 210,278.76/x
  3. Step 3: Cross multiply
    636,713.39x = 955,188.21 × 210,278.76
  4. Step 4: Simplify right side
    636,713.39x = 200,855,792,365.42
  5. Step 5: Solve for x
    x = 200,855,792,365.42/636,713.39
  6. Step 6: Final answer
    x = 315,457.15

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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.