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Finding the Fourth Proportional to 194,939.80, 292,409.70 and 54,722.20

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Solution

The fourth proportional to 194,939.80, 292,409.70 and 54,722.20 is: 82,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,939.80 : 292,409.70 = 54,722.20 : x
  2. Step 2: Convert to fraction form
    194,939.80/292,409.70 = 54,722.20/x
  3. Step 3: Cross multiply
    194,939.80x = 292,409.70 × 54,722.20
  4. Step 4: Simplify right side
    194,939.80x = 16,001,302,085.34
  5. Step 5: Solve for x
    x = 16,001,302,085.34/194,939.80
  6. Step 6: Final answer
    x = 82,083.30

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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.