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Finding the Fourth Proportional to 220,281, 330,420.38 and 62,509.72

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Solution

The fourth proportional to 220,281, 330,420.38 and 62,509.72 is: 93,764.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,281 : 330,420.38 = 62,509.72 : x
  2. Step 2: Convert to fraction form
    220,281/330,420.38 = 62,509.72/x
  3. Step 3: Cross multiply
    220,281x = 330,420.38 × 62,509.72
  4. Step 4: Simplify right side
    220,281x = 20,654,485,436.09
  5. Step 5: Solve for x
    x = 20,654,485,436.09/220,281
  6. Step 6: Final answer
    x = 93,764.26

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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.