Home / 209,767.40-313,959.90-162,765.80

Finding the Fourth Proportional to 209,767.40, 313,959.90 and 162,765.80

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Solution

The fourth proportional to 209,767.40, 313,959.90 and 162,765.80 is: 243,612.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,767.40 : 313,959.90 = 162,765.80 : x
  2. Step 2: Convert to fraction form
    209,767.40/313,959.90 = 162,765.80/x
  3. Step 3: Cross multiply
    209,767.40x = 313,959.90 × 162,765.80
  4. Step 4: Simplify right side
    209,767.40x = 51,101,934,291.42
  5. Step 5: Solve for x
    x = 51,101,934,291.42/209,767.40
  6. Step 6: Final answer
    x = 243,612.37

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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.