Home / 276,279.14-381,264.66-155,420.52

Finding the Fourth Proportional to 276,279.14, 381,264.66 and 155,420.52

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Solution

The fourth proportional to 276,279.14, 381,264.66 and 155,420.52 is: 214,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,279.14 : 381,264.66 = 155,420.52 : x
  2. Step 2: Convert to fraction form
    276,279.14/381,264.66 = 155,420.52/x
  3. Step 3: Cross multiply
    276,279.14x = 381,264.66 × 155,420.52
  4. Step 4: Simplify right side
    276,279.14x = 59,256,351,714.82
  5. Step 5: Solve for x
    x = 59,256,351,714.82/276,279.14
  6. Step 6: Final answer
    x = 214,480.01

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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.