Home / 276,294.47-381,255.39-155,433.24

Finding the Fourth Proportional to 276,294.47, 381,255.39 and 155,433.24

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Solution

The fourth proportional to 276,294.47, 381,255.39 and 155,433.24 is: 214,480.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,294.47 : 381,255.39 = 155,433.24 : x
  2. Step 2: Convert to fraction form
    276,294.47/381,255.39 = 155,433.24/x
  3. Step 3: Cross multiply
    276,294.47x = 381,255.39 × 155,433.24
  4. Step 4: Simplify right side
    276,294.47x = 59,259,760,535.16
  5. Step 5: Solve for x
    x = 59,259,760,535.16/276,294.47
  6. Step 6: Final answer
    x = 214,480.45

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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.