Home / 347,138.24-520,914.28-154,997.72

Finding the Fourth Proportional to 347,138.24, 520,914.28 and 154,997.72

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Solution

The fourth proportional to 347,138.24, 520,914.28 and 154,997.72 is: 232,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,138.24 : 520,914.28 = 154,997.72 : x
  2. Step 2: Convert to fraction form
    347,138.24/520,914.28 = 154,997.72/x
  3. Step 3: Cross multiply
    347,138.24x = 520,914.28 × 154,997.72
  4. Step 4: Simplify right side
    347,138.24x = 80,740,525,715.44
  5. Step 5: Solve for x
    x = 80,740,525,715.44/347,138.24
  6. Step 6: Final answer
    x = 232,588.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.