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Finding the Fourth Proportional to 369,709.62, 510,222.90 and 208,505.85

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Solution

The fourth proportional to 369,709.62, 510,222.90 and 208,505.85 is: 287,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,709.62 : 510,222.90 = 208,505.85 : x
  2. Step 2: Convert to fraction form
    369,709.62/510,222.90 = 208,505.85/x
  3. Step 3: Cross multiply
    369,709.62x = 510,222.90 × 208,505.85
  4. Step 4: Simplify right side
    369,709.62x = 106,384,456,902.85
  5. Step 5: Solve for x
    x = 106,384,456,902.85/369,709.62
  6. Step 6: Final answer
    x = 287,751.39

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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.