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Finding the Fourth Proportional to 271,938.90, 407,908.35 and 231,698.10

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Solution

The fourth proportional to 271,938.90, 407,908.35 and 231,698.10 is: 347,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,938.90 : 407,908.35 = 231,698.10 : x
  2. Step 2: Convert to fraction form
    271,938.90/407,908.35 = 231,698.10/x
  3. Step 3: Cross multiply
    271,938.90x = 407,908.35 × 231,698.10
  4. Step 4: Simplify right side
    271,938.90x = 94,511,589,669.14
  5. Step 5: Solve for x
    x = 94,511,589,669.14/271,938.90
  6. Step 6: Final answer
    x = 347,547.15

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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.