Home / 383,721.90-575,748.66-206,021.40

Finding the Fourth Proportional to 383,721.90, 575,748.66 and 206,021.40

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Solution

The fourth proportional to 383,721.90, 575,748.66 and 206,021.40 is: 309,121.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,721.90 : 575,748.66 = 206,021.40 : x
  2. Step 2: Convert to fraction form
    383,721.90/575,748.66 = 206,021.40/x
  3. Step 3: Cross multiply
    383,721.90x = 575,748.66 × 206,021.40
  4. Step 4: Simplify right side
    383,721.90x = 118,616,544,981.32
  5. Step 5: Solve for x
    x = 118,616,544,981.32/383,721.90
  6. Step 6: Final answer
    x = 309,121.12

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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.