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Finding the Fourth Proportional to 321,765.51, 444,036.45 and 178,525.20

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Solution

The fourth proportional to 321,765.51, 444,036.45 and 178,525.20 is: 246,364.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,765.51 : 444,036.45 = 178,525.20 : x
  2. Step 2: Convert to fraction form
    321,765.51/444,036.45 = 178,525.20/x
  3. Step 3: Cross multiply
    321,765.51x = 444,036.45 × 178,525.20
  4. Step 4: Simplify right side
    321,765.51x = 79,271,696,043.54
  5. Step 5: Solve for x
    x = 79,271,696,043.54/321,765.51
  6. Step 6: Final answer
    x = 246,364.80

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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.