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Finding the Fourth Proportional to 284,057.17, 426,085.21 and 165,645.48

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Solution

The fourth proportional to 284,057.17, 426,085.21 and 165,645.48 is: 248,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,057.17 : 426,085.21 = 165,645.48 : x
  2. Step 2: Convert to fraction form
    284,057.17/426,085.21 = 165,645.48/x
  3. Step 3: Cross multiply
    284,057.17x = 426,085.21 × 165,645.48
  4. Step 4: Simplify right side
    284,057.17x = 70,579,089,131.35
  5. Step 5: Solve for x
    x = 70,579,089,131.35/284,057.17
  6. Step 6: Final answer
    x = 248,467.90

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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.