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Finding the Fourth Proportional to 323,152.77, 484,504.29 and 143,140.47

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Solution

The fourth proportional to 323,152.77, 484,504.29 and 143,140.47 is: 214,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,152.77 : 484,504.29 = 143,140.47 : x
  2. Step 2: Convert to fraction form
    323,152.77/484,504.29 = 143,140.47/x
  3. Step 3: Cross multiply
    323,152.77x = 484,504.29 × 143,140.47
  4. Step 4: Simplify right side
    323,152.77x = 69,352,171,787.62
  5. Step 5: Solve for x
    x = 69,352,171,787.62/323,152.77
  6. Step 6: Final answer
    x = 214,611.10

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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.