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Finding the Fourth Proportional to 251,348.36, 377,012.70 and 85,136.36

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Solution

The fourth proportional to 251,348.36, 377,012.70 and 85,136.36 is: 127,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,348.36 : 377,012.70 = 85,136.36 : x
  2. Step 2: Convert to fraction form
    251,348.36/377,012.70 = 85,136.36/x
  3. Step 3: Cross multiply
    251,348.36x = 377,012.70 × 85,136.36
  4. Step 4: Simplify right side
    251,348.36x = 32,097,488,951.77
  5. Step 5: Solve for x
    x = 32,097,488,951.77/251,348.36
  6. Step 6: Final answer
    x = 127,701.21

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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.