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Finding the Fourth Proportional to 269,276.90, 403,915.35 and 91,768.10

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Solution

The fourth proportional to 269,276.90, 403,915.35 and 91,768.10 is: 137,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,276.90 : 403,915.35 = 91,768.10 : x
  2. Step 2: Convert to fraction form
    269,276.90/403,915.35 = 91,768.10/x
  3. Step 3: Cross multiply
    269,276.90x = 403,915.35 × 91,768.10
  4. Step 4: Simplify right side
    269,276.90x = 37,066,544,230.34
  5. Step 5: Solve for x
    x = 37,066,544,230.34/269,276.90
  6. Step 6: Final answer
    x = 137,652.15

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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.