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Finding the Fourth Proportional to 276,313.92, 413,928.51 and 143,281.14

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Solution

The fourth proportional to 276,313.92, 413,928.51 and 143,281.14 is: 214,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,313.92 : 413,928.51 = 143,281.14 : x
  2. Step 2: Convert to fraction form
    276,313.92/413,928.51 = 143,281.14/x
  3. Step 3: Cross multiply
    276,313.92x = 413,928.51 × 143,281.14
  4. Step 4: Simplify right side
    276,313.92x = 59,308,148,791.30
  5. Step 5: Solve for x
    x = 59,308,148,791.30/276,313.92
  6. Step 6: Final answer
    x = 214,640.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.