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Finding the Fourth Proportional to 343,958, 474,705.82 and 207,992.94

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Solution

The fourth proportional to 343,958, 474,705.82 and 207,992.94 is: 287,056.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,958 : 474,705.82 = 207,992.94 : x
  2. Step 2: Convert to fraction form
    343,958/474,705.82 = 207,992.94/x
  3. Step 3: Cross multiply
    343,958x = 474,705.82 × 207,992.94
  4. Step 4: Simplify right side
    343,958x = 98,735,459,136.91
  5. Step 5: Solve for x
    x = 98,735,459,136.91/343,958
  6. Step 6: Final answer
    x = 287,056.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.