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Finding the Fourth Proportional to 197,143.60, 295,715.40 and 163,901.20

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Solution

The fourth proportional to 197,143.60, 295,715.40 and 163,901.20 is: 245,851.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,143.60 : 295,715.40 = 163,901.20 : x
  2. Step 2: Convert to fraction form
    197,143.60/295,715.40 = 163,901.20/x
  3. Step 3: Cross multiply
    197,143.60x = 295,715.40 × 163,901.20
  4. Step 4: Simplify right side
    197,143.60x = 48,468,108,918.48
  5. Step 5: Solve for x
    x = 48,468,108,918.48/197,143.60
  6. Step 6: Final answer
    x = 245,851.80

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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.