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Finding the Fourth Proportional to 636,068.25, 954,249.75 and 209,588.81

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Solution

The fourth proportional to 636,068.25, 954,249.75 and 209,588.81 is: 314,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,068.25 : 954,249.75 = 209,588.81 : x
  2. Step 2: Convert to fraction form
    636,068.25/954,249.75 = 209,588.81/x
  3. Step 3: Cross multiply
    636,068.25x = 954,249.75 × 209,588.81
  4. Step 4: Simplify right side
    636,068.25x = 200,000,064,774.05
  5. Step 5: Solve for x
    x = 200,000,064,774.05/636,068.25
  6. Step 6: Final answer
    x = 314,431.77

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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.