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Finding the Fourth Proportional to 636,715.14, 955,190.84 and 210,280.51

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Solution

The fourth proportional to 636,715.14, 955,190.84 and 210,280.51 is: 315,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,715.14 : 955,190.84 = 210,280.51 : x
  2. Step 2: Convert to fraction form
    636,715.14/955,190.84 = 210,280.51/x
  3. Step 3: Cross multiply
    636,715.14x = 955,190.84 × 210,280.51
  4. Step 4: Simplify right side
    636,715.14x = 200,858,016,982.53
  5. Step 5: Solve for x
    x = 200,858,016,982.53/636,715.14
  6. Step 6: Final answer
    x = 315,459.78

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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.