Home / 276,238.04-381,242.18-155,384.42

Finding the Fourth Proportional to 276,238.04, 381,242.18 and 155,384.42

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Solution

The fourth proportional to 276,238.04, 381,242.18 and 155,384.42 is: 214,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,238.04 : 381,242.18 = 155,384.42 : x
  2. Step 2: Convert to fraction form
    276,238.04/381,242.18 = 155,384.42/x
  3. Step 3: Cross multiply
    276,238.04x = 381,242.18 × 155,384.42
  4. Step 4: Simplify right side
    276,238.04x = 59,239,094,241.91
  5. Step 5: Solve for x
    x = 59,239,094,241.91/276,238.04
  6. Step 6: Final answer
    x = 214,449.44

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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.