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Finding the Fourth Proportional to 379,506.72, 569,239.56 and 192,513.36

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Solution

The fourth proportional to 379,506.72, 569,239.56 and 192,513.36 is: 288,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,506.72 : 569,239.56 = 192,513.36 : x
  2. Step 2: Convert to fraction form
    379,506.72/569,239.56 = 192,513.36/x
  3. Step 3: Cross multiply
    379,506.72x = 569,239.56 × 192,513.36
  4. Step 4: Simplify right side
    379,506.72x = 109,586,220,340.52
  5. Step 5: Solve for x
    x = 109,586,220,340.52/379,506.72
  6. Step 6: Final answer
    x = 288,759.63

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1.5x scale

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.