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Finding the Fourth Proportional to 275,622.38, 380,400.12 and 168,254.62

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Solution

The fourth proportional to 275,622.38, 380,400.12 and 168,254.62 is: 232,216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,622.38 : 380,400.12 = 168,254.62 : x
  2. Step 2: Convert to fraction form
    275,622.38/380,400.12 = 168,254.62/x
  3. Step 3: Cross multiply
    275,622.38x = 380,400.12 × 168,254.62
  4. Step 4: Simplify right side
    275,622.38x = 64,004,077,638.55
  5. Step 5: Solve for x
    x = 64,004,077,638.55/275,622.38
  6. Step 6: Final answer
    x = 232,216.55

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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.