Home / 276,262.04-381,275.34-155,408.42

Finding the Fourth Proportional to 276,262.04, 381,275.34 and 155,408.42

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Solution

The fourth proportional to 276,262.04, 381,275.34 and 155,408.42 is: 214,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,262.04 : 381,275.34 = 155,408.42 : x
  2. Step 2: Convert to fraction form
    276,262.04/381,275.34 = 155,408.42/x
  3. Step 3: Cross multiply
    276,262.04x = 381,275.34 × 155,408.42
  4. Step 4: Simplify right side
    276,262.04x = 59,253,398,174.36
  5. Step 5: Solve for x
    x = 59,253,398,174.36/276,262.04
  6. Step 6: Final answer
    x = 214,482.59

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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.