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Finding the Fourth Proportional to 467,122, 644,630.92 and 255,154

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Solution

The fourth proportional to 467,122, 644,630.92 and 255,154 is: 352,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,122 : 644,630.92 = 255,154 : x
  2. Step 2: Convert to fraction form
    467,122/644,630.92 = 255,154/x
  3. Step 3: Cross multiply
    467,122x = 644,630.92 × 255,154
  4. Step 4: Simplify right side
    467,122x = 164,480,157,761.68
  5. Step 5: Solve for x
    x = 164,480,157,761.68/467,122
  6. Step 6: Final answer
    x = 352,113.92

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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.