Home / 347,721.90-521,928.45-170,429.10

Finding the Fourth Proportional to 347,721.90, 521,928.45 and 170,429.10

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Solution

The fourth proportional to 347,721.90, 521,928.45 and 170,429.10 is: 255,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,721.90 : 521,928.45 = 170,429.10 : x
  2. Step 2: Convert to fraction form
    347,721.90/521,928.45 = 170,429.10/x
  3. Step 3: Cross multiply
    347,721.90x = 521,928.45 × 170,429.10
  4. Step 4: Simplify right side
    347,721.90x = 88,951,795,997.90
  5. Step 5: Solve for x
    x = 88,951,795,997.90/347,721.90
  6. Step 6: Final answer
    x = 255,813.04

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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.