Home / 324,138.98-447,342.89-180,912.35

Finding the Fourth Proportional to 324,138.98, 447,342.89 and 180,912.35

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Solution

The fourth proportional to 324,138.98, 447,342.89 and 180,912.35 is: 249,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,138.98 : 447,342.89 = 180,912.35 : x
  2. Step 2: Convert to fraction form
    324,138.98/447,342.89 = 180,912.35/x
  3. Step 3: Cross multiply
    324,138.98x = 447,342.89 × 180,912.35
  4. Step 4: Simplify right side
    324,138.98x = 80,929,853,699.49
  5. Step 5: Solve for x
    x = 80,929,853,699.49/324,138.98
  6. Step 6: Final answer
    x = 249,676.40

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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.