Home / 276,244.07-381,108.87-155,357.64

Finding the Fourth Proportional to 276,244.07, 381,108.87 and 155,357.64

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Solution

The fourth proportional to 276,244.07, 381,108.87 and 155,357.64 is: 214,332.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,244.07 : 381,108.87 = 155,357.64 : x
  2. Step 2: Convert to fraction form
    276,244.07/381,108.87 = 155,357.64/x
  3. Step 3: Cross multiply
    276,244.07x = 381,108.87 × 155,357.64
  4. Step 4: Simplify right side
    276,244.07x = 59,208,174,626.27
  5. Step 5: Solve for x
    x = 59,208,174,626.27/276,244.07
  6. Step 6: Final answer
    x = 214,332.84

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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.