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Finding the Fourth Proportional to 630,640.33, 945,397.99 and 231,187.84

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Solution

The fourth proportional to 630,640.33, 945,397.99 and 231,187.84 is: 346,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,640.33 : 945,397.99 = 231,187.84 : x
  2. Step 2: Convert to fraction form
    630,640.33/945,397.99 = 231,187.84/x
  3. Step 3: Cross multiply
    630,640.33x = 945,397.99 × 231,187.84
  4. Step 4: Simplify right side
    630,640.33x = 218,564,517,173.93
  5. Step 5: Solve for x
    x = 218,564,517,173.93/630,640.33
  6. Step 6: Final answer
    x = 346,575.55

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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.