Home / 276,437.36-381,458.76-155,588.24

Finding the Fourth Proportional to 276,437.36, 381,458.76 and 155,588.24

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Solution

The fourth proportional to 276,437.36, 381,458.76 and 155,588.24 is: 214,697.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,437.36 : 381,458.76 = 155,588.24 : x
  2. Step 2: Convert to fraction form
    276,437.36/381,458.76 = 155,588.24/x
  3. Step 3: Cross multiply
    276,437.36x = 381,458.76 × 155,588.24
  4. Step 4: Simplify right side
    276,437.36x = 59,350,497,100.98
  5. Step 5: Solve for x
    x = 59,350,497,100.98/276,437.36
  6. Step 6: Final answer
    x = 214,697.81

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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.