Home / 321,111.12-481,965.56-163,457.58

Finding the Fourth Proportional to 321,111.12, 481,965.56 and 163,457.58

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Solution

The fourth proportional to 321,111.12, 481,965.56 and 163,457.58 is: 245,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,111.12 : 481,965.56 = 163,457.58 : x
  2. Step 2: Convert to fraction form
    321,111.12/481,965.56 = 163,457.58/x
  3. Step 3: Cross multiply
    321,111.12x = 481,965.56 × 163,457.58
  4. Step 4: Simplify right side
    321,111.12x = 78,780,924,080.94
  5. Step 5: Solve for x
    x = 78,780,924,080.94/321,111.12
  6. Step 6: Final answer
    x = 245,338.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.