Home / 399,137.02-598,880.90-209,553.33

Finding the Fourth Proportional to 399,137.02, 598,880.90 and 209,553.33

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Solution

The fourth proportional to 399,137.02, 598,880.90 and 209,553.33 is: 314,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,137.02 : 598,880.90 = 209,553.33 : x
  2. Step 2: Convert to fraction form
    399,137.02/598,880.90 = 209,553.33/x
  3. Step 3: Cross multiply
    399,137.02x = 598,880.90 × 209,553.33
  4. Step 4: Simplify right side
    399,137.02x = 125,497,487,392.28
  5. Step 5: Solve for x
    x = 125,497,487,392.28/399,137.02
  6. Step 6: Final answer
    x = 314,422.07

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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.