Home / 276,277.14-381,261.91-155,418.52

Finding the Fourth Proportional to 276,277.14, 381,261.91 and 155,418.52

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Solution

The fourth proportional to 276,277.14, 381,261.91 and 155,418.52 is: 214,477.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,277.14 : 381,261.91 = 155,418.52 : x
  2. Step 2: Convert to fraction form
    276,277.14/381,261.91 = 155,418.52/x
  3. Step 3: Cross multiply
    276,277.14x = 381,261.91 × 155,418.52
  4. Step 4: Simplify right side
    276,277.14x = 59,255,161,007.48
  5. Step 5: Solve for x
    x = 59,255,161,007.48/276,277.14
  6. Step 6: Final answer
    x = 214,477.25

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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.