Home / 369,072.63-509,317.92-207,979.43

Finding the Fourth Proportional to 369,072.63, 509,317.92 and 207,979.43

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Solution

The fourth proportional to 369,072.63, 509,317.92 and 207,979.43 is: 287,010.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,072.63 : 509,317.92 = 207,979.43 : x
  2. Step 2: Convert to fraction form
    369,072.63/509,317.92 = 207,979.43/x
  3. Step 3: Cross multiply
    369,072.63x = 509,317.92 × 207,979.43
  4. Step 4: Simplify right side
    369,072.63x = 105,927,648,143.80
  5. Step 5: Solve for x
    x = 105,927,648,143.80/369,072.63
  6. Step 6: Final answer
    x = 287,010.31

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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.