Home / 209,725.40-313,896.90-162,723.80

Finding the Fourth Proportional to 209,725.40, 313,896.90 and 162,723.80

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Solution

The fourth proportional to 209,725.40, 313,896.90 and 162,723.80 is: 243,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,725.40 : 313,896.90 = 162,723.80 : x
  2. Step 2: Convert to fraction form
    209,725.40/313,896.90 = 162,723.80/x
  3. Step 3: Cross multiply
    209,725.40x = 313,896.90 × 162,723.80
  4. Step 4: Simplify right side
    209,725.40x = 51,078,496,376.22
  5. Step 5: Solve for x
    x = 51,078,496,376.22/209,725.40
  6. Step 6: Final answer
    x = 243,549.40

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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.