Home / 276,499.04-381,492.24-155,633.28

Finding the Fourth Proportional to 276,499.04, 381,492.24 and 155,633.28

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Solution

The fourth proportional to 276,499.04, 381,492.24 and 155,633.28 is: 214,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,499.04 : 381,492.24 = 155,633.28 : x
  2. Step 2: Convert to fraction form
    276,499.04/381,492.24 = 155,633.28/x
  3. Step 3: Cross multiply
    276,499.04x = 381,492.24 × 155,633.28
  4. Step 4: Simplify right side
    276,499.04x = 59,372,888,605.75
  5. Step 5: Solve for x
    x = 59,372,888,605.75/276,499.04
  6. Step 6: Final answer
    x = 214,730.90

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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.