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Finding the Fourth Proportional to 276,374.28, 381,396.96 and 155,522.28

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Solution

The fourth proportional to 276,374.28, 381,396.96 and 155,522.28 is: 214,621.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,374.28 : 381,396.96 = 155,522.28 : x
  2. Step 2: Convert to fraction form
    276,374.28/381,396.96 = 155,522.28/x
  3. Step 3: Cross multiply
    276,374.28x = 381,396.96 × 155,522.28
  4. Step 4: Simplify right side
    276,374.28x = 59,315,724,804.27
  5. Step 5: Solve for x
    x = 59,315,724,804.27/276,374.28
  6. Step 6: Final answer
    x = 214,621.00

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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.