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Finding the Fourth Proportional to 196,455.60, 295,120.80 and 188,485.20

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Solution

The fourth proportional to 196,455.60, 295,120.80 and 188,485.20 is: 283,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,455.60 : 295,120.80 = 188,485.20 : x
  2. Step 2: Convert to fraction form
    196,455.60/295,120.80 = 188,485.20/x
  3. Step 3: Cross multiply
    196,455.60x = 295,120.80 × 188,485.20
  4. Step 4: Simplify right side
    196,455.60x = 55,625,903,012.16
  5. Step 5: Solve for x
    x = 55,625,903,012.16/196,455.60
  6. Step 6: Final answer
    x = 283,147.45

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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.