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Finding the Fourth Proportional to 384,692.36, 576,966.05 and 104,172.68

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Solution

The fourth proportional to 384,692.36, 576,966.05 and 104,172.68 is: 156,239.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,692.36 : 576,966.05 = 104,172.68 : x
  2. Step 2: Convert to fraction form
    384,692.36/576,966.05 = 104,172.68/x
  3. Step 3: Cross multiply
    384,692.36x = 576,966.05 × 104,172.68
  4. Step 4: Simplify right side
    384,692.36x = 60,104,097,073.12
  5. Step 5: Solve for x
    x = 60,104,097,073.12/384,692.36
  6. Step 6: Final answer
    x = 156,239.39

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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.