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Finding the Fourth Proportional to 275,812.08, 380,661.90 and 168,443.88

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Solution

The fourth proportional to 275,812.08, 380,661.90 and 168,443.88 is: 232,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,812.08 : 380,661.90 = 168,443.88 : x
  2. Step 2: Convert to fraction form
    275,812.08/380,661.90 = 168,443.88/x
  3. Step 3: Cross multiply
    275,812.08x = 380,661.90 × 168,443.88
  4. Step 4: Simplify right side
    275,812.08x = 64,120,167,404.17
  5. Step 5: Solve for x
    x = 64,120,167,404.17/275,812.08
  6. Step 6: Final answer
    x = 232,477.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.