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Finding the Fourth Proportional to 266,802.70, 399,232.05 and 196,818.70

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Solution

The fourth proportional to 266,802.70, 399,232.05 and 196,818.70 is: 294,511.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,802.70 : 399,232.05 = 196,818.70 : x
  2. Step 2: Convert to fraction form
    266,802.70/399,232.05 = 196,818.70/x
  3. Step 3: Cross multiply
    266,802.70x = 399,232.05 × 196,818.70
  4. Step 4: Simplify right side
    266,802.70x = 78,576,333,079.34
  5. Step 5: Solve for x
    x = 78,576,333,079.34/266,802.70
  6. Step 6: Final answer
    x = 294,511.01

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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.