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Finding the Fourth Proportional to 194,821.80, 292,211.10 and 159,700.20

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Solution

The fourth proportional to 194,821.80, 292,211.10 and 159,700.20 is: 239,532.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,821.80 : 292,211.10 = 159,700.20 : x
  2. Step 2: Convert to fraction form
    194,821.80/292,211.10 = 159,700.20/x
  3. Step 3: Cross multiply
    194,821.80x = 292,211.10 × 159,700.20
  4. Step 4: Simplify right side
    194,821.80x = 46,666,171,112.22
  5. Step 5: Solve for x
    x = 46,666,171,112.22/194,821.80
  6. Step 6: Final answer
    x = 239,532.59

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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.