Home / 276,036.07-380,903.30-155,149.51

Finding the Fourth Proportional to 276,036.07, 380,903.30 and 155,149.51

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Solution

The fourth proportional to 276,036.07, 380,903.30 and 155,149.51 is: 214,091.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,036.07 : 380,903.30 = 155,149.51 : x
  2. Step 2: Convert to fraction form
    276,036.07/380,903.30 = 155,149.51/x
  3. Step 3: Cross multiply
    276,036.07x = 380,903.30 × 155,149.51
  4. Step 4: Simplify right side
    276,036.07x = 59,096,959,576.64
  5. Step 5: Solve for x
    x = 59,096,959,576.64/276,036.07
  6. Step 6: Final answer
    x = 214,091.44

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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.