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Finding the Fourth Proportional to 351,295.44, 529,698.66 and 321,902.16

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Solution

The fourth proportional to 351,295.44, 529,698.66 and 321,902.16 is: 485,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,295.44 : 529,698.66 = 321,902.16 : x
  2. Step 2: Convert to fraction form
    351,295.44/529,698.66 = 321,902.16/x
  3. Step 3: Cross multiply
    351,295.44x = 529,698.66 × 321,902.16
  4. Step 4: Simplify right side
    351,295.44x = 170,511,142,803.11
  5. Step 5: Solve for x
    x = 170,511,142,803.11/351,295.44
  6. Step 6: Final answer
    x = 485,378.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.