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Finding the Fourth Proportional to 219,021.60, 306,837.60 and 219,021.60

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Solution

The fourth proportional to 219,021.60, 306,837.60 and 219,021.60 is: 306,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,021.60 : 306,837.60 = 219,021.60 : x
  2. Step 2: Convert to fraction form
    219,021.60/306,837.60 = 219,021.60/x
  3. Step 3: Cross multiply
    219,021.60x = 306,837.60 × 219,021.60
  4. Step 4: Simplify right side
    219,021.60x = 67,204,062,092.16
  5. Step 5: Solve for x
    x = 67,204,062,092.16/219,021.60
  6. Step 6: Final answer
    x = 306,837.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.