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Finding the Fourth Proportional to 424,466.22, 636,564 and 140,103.96

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Solution

The fourth proportional to 424,466.22, 636,564 and 140,103.96 is: 210,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,466.22 : 636,564 = 140,103.96 : x
  2. Step 2: Convert to fraction form
    424,466.22/636,564 = 140,103.96/x
  3. Step 3: Cross multiply
    424,466.22x = 636,564 × 140,103.96
  4. Step 4: Simplify right side
    424,466.22x = 89,185,137,193.44
  5. Step 5: Solve for x
    x = 89,185,137,193.44/424,466.22
  6. Step 6: Final answer
    x = 210,111.27

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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.