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Finding the Fourth Proportional to 219,892.47, 329,804.55 and 84,937.16

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Solution

The fourth proportional to 219,892.47, 329,804.55 and 84,937.16 is: 127,392.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,892.47 : 329,804.55 = 84,937.16 : x
  2. Step 2: Convert to fraction form
    219,892.47/329,804.55 = 84,937.16/x
  3. Step 3: Cross multiply
    219,892.47x = 329,804.55 × 84,937.16
  4. Step 4: Simplify right side
    219,892.47x = 28,012,660,183.06
  5. Step 5: Solve for x
    x = 28,012,660,183.06/219,892.47
  6. Step 6: Final answer
    x = 127,392.54

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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.