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Finding the Fourth Proportional to 347,789.80, 521,684.70 and 170,324.20

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Solution

The fourth proportional to 347,789.80, 521,684.70 and 170,324.20 is: 255,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,789.80 : 521,684.70 = 170,324.20 : x
  2. Step 2: Convert to fraction form
    347,789.80/521,684.70 = 170,324.20/x
  3. Step 3: Cross multiply
    347,789.80x = 521,684.70 × 170,324.20
  4. Step 4: Simplify right side
    347,789.80x = 88,855,529,179.74
  5. Step 5: Solve for x
    x = 88,855,529,179.74/347,789.80
  6. Step 6: Final answer
    x = 255,486.30

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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.