Home / 321,789.12-443,914.56-235,612.32

Finding the Fourth Proportional to 321,789.12, 443,914.56 and 235,612.32

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Solution

The fourth proportional to 321,789.12, 443,914.56 and 235,612.32 is: 325,031.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,789.12 : 443,914.56 = 235,612.32 : x
  2. Step 2: Convert to fraction form
    321,789.12/443,914.56 = 235,612.32/x
  3. Step 3: Cross multiply
    321,789.12x = 443,914.56 × 235,612.32
  4. Step 4: Simplify right side
    321,789.12x = 104,591,739,363.38
  5. Step 5: Solve for x
    x = 104,591,739,363.38/321,789.12
  6. Step 6: Final answer
    x = 325,031.93

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1.5x scale

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.