Home / 347,838.10-521,757.15-214,285.30

Finding the Fourth Proportional to 347,838.10, 521,757.15 and 214,285.30

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Solution

The fourth proportional to 347,838.10, 521,757.15 and 214,285.30 is: 321,427.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,838.10 : 521,757.15 = 214,285.30 : x
  2. Step 2: Convert to fraction form
    347,838.10/521,757.15 = 214,285.30/x
  3. Step 3: Cross multiply
    347,838.10x = 521,757.15 × 214,285.30
  4. Step 4: Simplify right side
    347,838.10x = 111,804,887,414.90
  5. Step 5: Solve for x
    x = 111,804,887,414.90/347,838.10
  6. Step 6: Final answer
    x = 321,427.95

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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.