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Finding the Fourth Proportional to 290,315.63, 400,625.29 and 162,996.59

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Solution

The fourth proportional to 290,315.63, 400,625.29 and 162,996.59 is: 224,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,315.63 : 400,625.29 = 162,996.59 : x
  2. Step 2: Convert to fraction form
    290,315.63/400,625.29 = 162,996.59/x
  3. Step 3: Cross multiply
    290,315.63x = 400,625.29 × 162,996.59
  4. Step 4: Simplify right side
    290,315.63x = 65,300,557,343.07
  5. Step 5: Solve for x
    x = 65,300,557,343.07/290,315.63
  6. Step 6: Final answer
    x = 224,929.53

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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.