Home / 276,809.27-381,995.03-155,989.35

Finding the Fourth Proportional to 276,809.27, 381,995.03 and 155,989.35

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Solution

The fourth proportional to 276,809.27, 381,995.03 and 155,989.35 is: 215,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,809.27 : 381,995.03 = 155,989.35 : x
  2. Step 2: Convert to fraction form
    276,809.27/381,995.03 = 155,989.35/x
  3. Step 3: Cross multiply
    276,809.27x = 381,995.03 × 155,989.35
  4. Step 4: Simplify right side
    276,809.27x = 59,587,156,822.90
  5. Step 5: Solve for x
    x = 59,587,156,822.90/276,809.27
  6. Step 6: Final answer
    x = 215,264.32

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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.