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Finding the Fourth Proportional to 197,644, 296,496.72 and 66,346.72

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Solution

The fourth proportional to 197,644, 296,496.72 and 66,346.72 is: 99,530.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,644 : 296,496.72 = 66,346.72 : x
  2. Step 2: Convert to fraction form
    197,644/296,496.72 = 66,346.72/x
  3. Step 3: Cross multiply
    197,644x = 296,496.72 × 66,346.72
  4. Step 4: Simplify right side
    197,644x = 19,671,584,862.76
  5. Step 5: Solve for x
    x = 19,671,584,862.76/197,644
  6. Step 6: Final answer
    x = 99,530.39

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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.