Home / 284,949.37-393,240.05-157,636.81

Finding the Fourth Proportional to 284,949.37, 393,240.05 and 157,636.81

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Solution

The fourth proportional to 284,949.37, 393,240.05 and 157,636.81 is: 217,544.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,949.37 : 393,240.05 = 157,636.81 : x
  2. Step 2: Convert to fraction form
    284,949.37/393,240.05 = 157,636.81/x
  3. Step 3: Cross multiply
    284,949.37x = 393,240.05 × 157,636.81
  4. Step 4: Simplify right side
    284,949.37x = 61,989,107,046.24
  5. Step 5: Solve for x
    x = 61,989,107,046.24/284,949.37
  6. Step 6: Final answer
    x = 217,544.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.