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Finding the Fourth Proportional to 219,242.39, 328,884.49 and 61,470.39

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Solution

The fourth proportional to 219,242.39, 328,884.49 and 61,470.39 is: 92,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,242.39 : 328,884.49 = 61,470.39 : x
  2. Step 2: Convert to fraction form
    219,242.39/328,884.49 = 61,470.39/x
  3. Step 3: Cross multiply
    219,242.39x = 328,884.49 × 61,470.39
  4. Step 4: Simplify right side
    219,242.39x = 20,216,657,865.25
  5. Step 5: Solve for x
    x = 20,216,657,865.25/219,242.39
  6. Step 6: Final answer
    x = 92,211.45

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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.