Home / 347,127.78-520,738.24-122,435.40

Finding the Fourth Proportional to 347,127.78, 520,738.24 and 122,435.40

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Solution

The fourth proportional to 347,127.78, 520,738.24 and 122,435.40 is: 183,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,127.78 : 520,738.24 = 122,435.40 : x
  2. Step 2: Convert to fraction form
    347,127.78/520,738.24 = 122,435.40/x
  3. Step 3: Cross multiply
    347,127.78x = 520,738.24 × 122,435.40
  4. Step 4: Simplify right side
    347,127.78x = 63,756,794,709.70
  5. Step 5: Solve for x
    x = 63,756,794,709.70/347,127.78
  6. Step 6: Final answer
    x = 183,669.53

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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.