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Finding the Fourth Proportional to 275,488.40, 412,541.40 and 181,485.20

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Solution

The fourth proportional to 275,488.40, 412,541.40 and 181,485.20 is: 271,772.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,488.40 : 412,541.40 = 181,485.20 : x
  2. Step 2: Convert to fraction form
    275,488.40/412,541.40 = 181,485.20/x
  3. Step 3: Cross multiply
    275,488.40x = 412,541.40 × 181,485.20
  4. Step 4: Simplify right side
    275,488.40x = 74,870,158,487.28
  5. Step 5: Solve for x
    x = 74,870,158,487.28/275,488.40
  6. Step 6: Final answer
    x = 271,772.45

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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.