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Finding the Fourth Proportional to 369,010.98, 509,219.37 and 205,658.78

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Solution

The fourth proportional to 369,010.98, 509,219.37 and 205,658.78 is: 283,800.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,010.98 : 509,219.37 = 205,658.78 : x
  2. Step 2: Convert to fraction form
    369,010.98/509,219.37 = 205,658.78/x
  3. Step 3: Cross multiply
    369,010.98x = 509,219.37 × 205,658.78
  4. Step 4: Simplify right side
    369,010.98x = 104,725,431,840.47
  5. Step 5: Solve for x
    x = 104,725,431,840.47/369,010.98
  6. Step 6: Final answer
    x = 283,800.31

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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.