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Finding the Fourth Proportional to 298,113.43, 411,396.21 and 170,789.53

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Solution

The fourth proportional to 298,113.43, 411,396.21 and 170,789.53 is: 235,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,113.43 : 411,396.21 = 170,789.53 : x
  2. Step 2: Convert to fraction form
    298,113.43/411,396.21 = 170,789.53/x
  3. Step 3: Cross multiply
    298,113.43x = 411,396.21 × 170,789.53
  4. Step 4: Simplify right side
    298,113.43x = 70,262,165,349.68
  5. Step 5: Solve for x
    x = 70,262,165,349.68/298,113.43
  6. Step 6: Final answer
    x = 235,689.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.