Home / 347,825.20-521,046.60-199,908.40

Finding the Fourth Proportional to 347,825.20, 521,046.60 and 199,908.40

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Solution

The fourth proportional to 347,825.20, 521,046.60 and 199,908.40 is: 299,465.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,825.20 : 521,046.60 = 199,908.40 : x
  2. Step 2: Convert to fraction form
    347,825.20/521,046.60 = 199,908.40/x
  3. Step 3: Cross multiply
    347,825.20x = 521,046.60 × 199,908.40
  4. Step 4: Simplify right side
    347,825.20x = 104,161,592,131.44
  5. Step 5: Solve for x
    x = 104,161,592,131.44/347,825.20
  6. Step 6: Final answer
    x = 299,465.34

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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.