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Finding the Fourth Proportional to 275,560.19, 380,246.81 and 154,673.76

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Solution

The fourth proportional to 275,560.19, 380,246.81 and 154,673.76 is: 213,435.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,560.19 : 380,246.81 = 154,673.76 : x
  2. Step 2: Convert to fraction form
    275,560.19/380,246.81 = 154,673.76/x
  3. Step 3: Cross multiply
    275,560.19x = 380,246.81 × 154,673.76
  4. Step 4: Simplify right side
    275,560.19x = 58,814,203,057.34
  5. Step 5: Solve for x
    x = 58,814,203,057.34/275,560.19
  6. Step 6: Final answer
    x = 213,435.05

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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.