Home / 373,491.03-515,382.97-212,314.60

Finding the Fourth Proportional to 373,491.03, 515,382.97 and 212,314.60

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Solution

The fourth proportional to 373,491.03, 515,382.97 and 212,314.60 is: 292,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,491.03 : 515,382.97 = 212,314.60 : x
  2. Step 2: Convert to fraction form
    373,491.03/515,382.97 = 212,314.60/x
  3. Step 3: Cross multiply
    373,491.03x = 515,382.97 × 212,314.60
  4. Step 4: Simplify right side
    373,491.03x = 109,423,329,122.36
  5. Step 5: Solve for x
    x = 109,423,329,122.36/373,491.03
  6. Step 6: Final answer
    x = 292,974.45

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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.