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Finding the Fourth Proportional to 270,838.08, 373,730.43 and 161,920.89

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Solution

The fourth proportional to 270,838.08, 373,730.43 and 161,920.89 is: 223,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,838.08 : 373,730.43 = 161,920.89 : x
  2. Step 2: Convert to fraction form
    270,838.08/373,730.43 = 161,920.89/x
  3. Step 3: Cross multiply
    270,838.08x = 373,730.43 × 161,920.89
  4. Step 4: Simplify right side
    270,838.08x = 60,514,763,845.68
  5. Step 5: Solve for x
    x = 60,514,763,845.68/270,838.08
  6. Step 6: Final answer
    x = 223,435.21

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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.