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Finding the Fourth Proportional to 307,548.88, 424,396.38 and 178,491.10

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Solution

The fourth proportional to 307,548.88, 424,396.38 and 178,491.10 is: 246,305.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,548.88 : 424,396.38 = 178,491.10 : x
  2. Step 2: Convert to fraction form
    307,548.88/424,396.38 = 178,491.10/x
  3. Step 3: Cross multiply
    307,548.88x = 424,396.38 × 178,491.10
  4. Step 4: Simplify right side
    307,548.88x = 75,750,976,702.22
  5. Step 5: Solve for x
    x = 75,750,976,702.22/307,548.88
  6. Step 6: Final answer
    x = 246,305.49

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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.