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Finding the Fourth Proportional to 194,910.30, 292,365.45 and 142,422.30

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Solution

The fourth proportional to 194,910.30, 292,365.45 and 142,422.30 is: 213,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,910.30 : 292,365.45 = 142,422.30 : x
  2. Step 2: Convert to fraction form
    194,910.30/292,365.45 = 142,422.30/x
  3. Step 3: Cross multiply
    194,910.30x = 292,365.45 × 142,422.30
  4. Step 4: Simplify right side
    194,910.30x = 41,639,359,829.54
  5. Step 5: Solve for x
    x = 41,639,359,829.54/194,910.30
  6. Step 6: Final answer
    x = 213,633.45

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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.