Home / 276,810.17-381,999.38-155,953.35

Finding the Fourth Proportional to 276,810.17, 381,999.38 and 155,953.35

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Solution

The fourth proportional to 276,810.17, 381,999.38 and 155,953.35 is: 215,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,810.17 : 381,999.38 = 155,953.35 : x
  2. Step 2: Convert to fraction form
    276,810.17/381,999.38 = 155,953.35/x
  3. Step 3: Cross multiply
    276,810.17x = 381,999.38 × 155,953.35
  4. Step 4: Simplify right side
    276,810.17x = 59,574,082,229.16
  5. Step 5: Solve for x
    x = 59,574,082,229.16/276,810.17
  6. Step 6: Final answer
    x = 215,216.38

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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.