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Finding the Fourth Proportional to 196,869.60, 295,304.40 and 72,194.40

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Solution

The fourth proportional to 196,869.60, 295,304.40 and 72,194.40 is: 108,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,869.60 : 295,304.40 = 72,194.40 : x
  2. Step 2: Convert to fraction form
    196,869.60/295,304.40 = 72,194.40/x
  3. Step 3: Cross multiply
    196,869.60x = 295,304.40 × 72,194.40
  4. Step 4: Simplify right side
    196,869.60x = 21,319,323,975.36
  5. Step 5: Solve for x
    x = 21,319,323,975.36/196,869.60
  6. Step 6: Final answer
    x = 108,291.60

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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.