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Finding the Fourth Proportional to 290,274.86, 400,579.29 and 162,950.36

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Solution

The fourth proportional to 290,274.86, 400,579.29 and 162,950.36 is: 224,871.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,274.86 : 400,579.29 = 162,950.36 : x
  2. Step 2: Convert to fraction form
    290,274.86/400,579.29 = 162,950.36/x
  3. Step 3: Cross multiply
    290,274.86x = 400,579.29 × 162,950.36
  4. Step 4: Simplify right side
    290,274.86x = 65,274,537,511.15
  5. Step 5: Solve for x
    x = 65,274,537,511.15/290,274.86
  6. Step 6: Final answer
    x = 224,871.48

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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.