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Finding the Fourth Proportional to 276,525.80, 381,617.16 and 155,667.32

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Solution

The fourth proportional to 276,525.80, 381,617.16 and 155,667.32 is: 214,827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,525.80 : 381,617.16 = 155,667.32 : x
  2. Step 2: Convert to fraction form
    276,525.80/381,617.16 = 155,667.32/x
  3. Step 3: Cross multiply
    276,525.80x = 381,617.16 × 155,667.32
  4. Step 4: Simplify right side
    276,525.80x = 59,405,320,563.21
  5. Step 5: Solve for x
    x = 59,405,320,563.21/276,525.80
  6. Step 6: Final answer
    x = 214,827.41

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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.