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Finding the Fourth Proportional to 197,143.20, 295,714.80 and 163,900.80

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Solution

The fourth proportional to 197,143.20, 295,714.80 and 163,900.80 is: 245,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,143.20 : 295,714.80 = 163,900.80 : x
  2. Step 2: Convert to fraction form
    197,143.20/295,714.80 = 163,900.80/x
  3. Step 3: Cross multiply
    197,143.20x = 295,714.80 × 163,900.80
  4. Step 4: Simplify right side
    197,143.20x = 48,467,892,291.84
  5. Step 5: Solve for x
    x = 48,467,892,291.84/197,143.20
  6. Step 6: Final answer
    x = 245,851.20

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1.5x scale

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.