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Finding the Fourth Proportional to 326,021.40, 488,837.70 and 168,557.40

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Solution

The fourth proportional to 326,021.40, 488,837.70 and 168,557.40 is: 252,735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,021.40 : 488,837.70 = 168,557.40 : x
  2. Step 2: Convert to fraction form
    326,021.40/488,837.70 = 168,557.40/x
  3. Step 3: Cross multiply
    326,021.40x = 488,837.70 × 168,557.40
  4. Step 4: Simplify right side
    326,021.40x = 82,397,211,733.98
  5. Step 5: Solve for x
    x = 82,397,211,733.98/326,021.40
  6. Step 6: Final answer
    x = 252,735.59

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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.