Home / 321,742.98-443,152.96-239,808.66

Finding the Fourth Proportional to 321,742.98, 443,152.96 and 239,808.66

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Solution

The fourth proportional to 321,742.98, 443,152.96 and 239,808.66 is: 330,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,742.98 : 443,152.96 = 239,808.66 : x
  2. Step 2: Convert to fraction form
    321,742.98/443,152.96 = 239,808.66/x
  3. Step 3: Cross multiply
    321,742.98x = 443,152.96 × 239,808.66
  4. Step 4: Simplify right side
    321,742.98x = 106,271,917,512.63
  5. Step 5: Solve for x
    x = 106,271,917,512.63/321,742.98
  6. Step 6: Final answer
    x = 330,300.66

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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.