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Finding the Fourth Proportional to 369,515.75, 509,949.17 and 208,367.34

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Solution

The fourth proportional to 369,515.75, 509,949.17 and 208,367.34 is: 287,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,515.75 : 509,949.17 = 208,367.34 : x
  2. Step 2: Convert to fraction form
    369,515.75/509,949.17 = 208,367.34/x
  3. Step 3: Cross multiply
    369,515.75x = 509,949.17 × 208,367.34
  4. Step 4: Simplify right side
    369,515.75x = 106,256,749,915.34
  5. Step 5: Solve for x
    x = 106,256,749,915.34/369,515.75
  6. Step 6: Final answer
    x = 287,556.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.