Home / 209,356.23-313,915.41-142,876.89

Finding the Fourth Proportional to 209,356.23, 313,915.41 and 142,876.89

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Solution

The fourth proportional to 209,356.23, 313,915.41 and 142,876.89 is: 214,234.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,356.23 : 313,915.41 = 142,876.89 : x
  2. Step 2: Convert to fraction form
    209,356.23/313,915.41 = 142,876.89/x
  3. Step 3: Cross multiply
    209,356.23x = 313,915.41 × 142,876.89
  4. Step 4: Simplify right side
    209,356.23x = 44,851,257,503.87
  5. Step 5: Solve for x
    x = 44,851,257,503.87/209,356.23
  6. Step 6: Final answer
    x = 214,234.17

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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.