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Finding the Fourth Proportional to 275,564.81, 380,258.40 and 154,682.74

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Solution

The fourth proportional to 275,564.81, 380,258.40 and 154,682.74 is: 213,450.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,564.81 : 380,258.40 = 154,682.74 : x
  2. Step 2: Convert to fraction form
    275,564.81/380,258.40 = 154,682.74/x
  3. Step 3: Cross multiply
    275,564.81x = 380,258.40 × 154,682.74
  4. Step 4: Simplify right side
    275,564.81x = 58,819,410,269.37
  5. Step 5: Solve for x
    x = 58,819,410,269.37/275,564.81
  6. Step 6: Final answer
    x = 213,450.37

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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.