Home / 347,787.10-521,680.65-214,234.30

Finding the Fourth Proportional to 347,787.10, 521,680.65 and 214,234.30

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Solution

The fourth proportional to 347,787.10, 521,680.65 and 214,234.30 is: 321,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,787.10 : 521,680.65 = 214,234.30 : x
  2. Step 2: Convert to fraction form
    347,787.10/521,680.65 = 214,234.30/x
  3. Step 3: Cross multiply
    347,787.10x = 521,680.65 × 214,234.30
  4. Step 4: Simplify right side
    347,787.10x = 111,761,888,876.30
  5. Step 5: Solve for x
    x = 111,761,888,876.30/347,787.10
  6. Step 6: Final answer
    x = 321,351.45

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1.5x scale

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.