Home / 347,703.20-521,630.40-198,015.20

Finding the Fourth Proportional to 347,703.20, 521,630.40 and 198,015.20

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Solution

The fourth proportional to 347,703.20, 521,630.40 and 198,015.20 is: 297,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,703.20 : 521,630.40 = 198,015.20 : x
  2. Step 2: Convert to fraction form
    347,703.20/521,630.40 = 198,015.20/x
  3. Step 3: Cross multiply
    347,703.20x = 521,630.40 × 198,015.20
  4. Step 4: Simplify right side
    347,703.20x = 103,290,747,982.08
  5. Step 5: Solve for x
    x = 103,290,747,982.08/347,703.20
  6. Step 6: Final answer
    x = 297,065.85

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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.