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Finding the Fourth Proportional to 424,137.05, 636,307.03 and 124,611

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Solution

The fourth proportional to 424,137.05, 636,307.03 and 124,611 is: 186,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,137.05 : 636,307.03 = 124,611 : x
  2. Step 2: Convert to fraction form
    424,137.05/636,307.03 = 124,611/x
  3. Step 3: Cross multiply
    424,137.05x = 636,307.03 × 124,611
  4. Step 4: Simplify right side
    424,137.05x = 79,290,855,003.80
  5. Step 5: Solve for x
    x = 79,290,855,003.80/424,137.05
  6. Step 6: Final answer
    x = 186,946.31

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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.