Home / 347,823.20-521,043.60-199,906.40

Finding the Fourth Proportional to 347,823.20, 521,043.60 and 199,906.40

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Solution

The fourth proportional to 347,823.20, 521,043.60 and 199,906.40 is: 299,462.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,823.20 : 521,043.60 = 199,906.40 : x
  2. Step 2: Convert to fraction form
    347,823.20/521,043.60 = 199,906.40/x
  3. Step 3: Cross multiply
    347,823.20x = 521,043.60 × 199,906.40
  4. Step 4: Simplify right side
    347,823.20x = 104,159,950,319.04
  5. Step 5: Solve for x
    x = 104,159,950,319.04/347,823.20
  6. Step 6: Final answer
    x = 299,462.34

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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.