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Finding the Fourth Proportional to 303,468.60, 455,721.30 and 163,500.60

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Solution

The fourth proportional to 303,468.60, 455,721.30 and 163,500.60 is: 245,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,468.60 : 455,721.30 = 163,500.60 : x
  2. Step 2: Convert to fraction form
    303,468.60/455,721.30 = 163,500.60/x
  3. Step 3: Cross multiply
    303,468.60x = 455,721.30 × 163,500.60
  4. Step 4: Simplify right side
    303,468.60x = 74,510,705,982.78
  5. Step 5: Solve for x
    x = 74,510,705,982.78/303,468.60
  6. Step 6: Final answer
    x = 245,530.20

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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.