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Finding the Fourth Proportional to 220,295.89, 304,134.24 and 145,063.09

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Solution

The fourth proportional to 220,295.89, 304,134.24 and 145,063.09 is: 200,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,295.89 : 304,134.24 = 145,063.09 : x
  2. Step 2: Convert to fraction form
    220,295.89/304,134.24 = 145,063.09/x
  3. Step 3: Cross multiply
    220,295.89x = 304,134.24 × 145,063.09
  4. Step 4: Simplify right side
    220,295.89x = 44,118,652,629.20
  5. Step 5: Solve for x
    x = 44,118,652,629.20/220,295.89
  6. Step 6: Final answer
    x = 200,269.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.