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Finding the Fourth Proportional to 276,036.57, 380,903.98 and 155,150.01

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Solution

The fourth proportional to 276,036.57, 380,903.98 and 155,150.01 is: 214,092.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,036.57 : 380,903.98 = 155,150.01 : x
  2. Step 2: Convert to fraction form
    276,036.57/380,903.98 = 155,150.01/x
  3. Step 3: Cross multiply
    276,036.57x = 380,903.98 × 155,150.01
  4. Step 4: Simplify right side
    276,036.57x = 59,097,256,306.04
  5. Step 5: Solve for x
    x = 59,097,256,306.04/276,036.57
  6. Step 6: Final answer
    x = 214,092.13

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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.