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Finding the Fourth Proportional to 305,255.80, 457,754.10 and 147,532.60

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Solution

The fourth proportional to 305,255.80, 457,754.10 and 147,532.60 is: 221,236.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,255.80 : 457,754.10 = 147,532.60 : x
  2. Step 2: Convert to fraction form
    305,255.80/457,754.10 = 147,532.60/x
  3. Step 3: Cross multiply
    305,255.80x = 457,754.10 × 147,532.60
  4. Step 4: Simplify right side
    305,255.80x = 67,533,652,533.66
  5. Step 5: Solve for x
    x = 67,533,652,533.66/305,255.80
  6. Step 6: Final answer
    x = 221,236.26

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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.