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Finding the Fourth Proportional to 379,073.43, 522,995.40 and 250,075.98

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Solution

The fourth proportional to 379,073.43, 522,995.40 and 250,075.98 is: 345,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,073.43 : 522,995.40 = 250,075.98 : x
  2. Step 2: Convert to fraction form
    379,073.43/522,995.40 = 250,075.98/x
  3. Step 3: Cross multiply
    379,073.43x = 522,995.40 × 250,075.98
  4. Step 4: Simplify right side
    379,073.43x = 130,788,587,190.49
  5. Step 5: Solve for x
    x = 130,788,587,190.49/379,073.43
  6. Step 6: Final answer
    x = 345,021.77

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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.