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Finding the Fourth Proportional to 275,653.20, 380,401.44 and 154,794.57

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Solution

The fourth proportional to 275,653.20, 380,401.44 and 154,794.57 is: 213,616.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,653.20 : 380,401.44 = 154,794.57 : x
  2. Step 2: Convert to fraction form
    275,653.20/380,401.44 = 154,794.57/x
  3. Step 3: Cross multiply
    275,653.20x = 380,401.44 × 154,794.57
  4. Step 4: Simplify right side
    275,653.20x = 58,884,077,332.18
  5. Step 5: Solve for x
    x = 58,884,077,332.18/275,653.20
  6. Step 6: Final answer
    x = 213,616.52

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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.