Home / 284,858.45-393,088.68-155,771.31

Finding the Fourth Proportional to 284,858.45, 393,088.68 and 155,771.31

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Solution

The fourth proportional to 284,858.45, 393,088.68 and 155,771.31 is: 214,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,858.45 : 393,088.68 = 155,771.31 : x
  2. Step 2: Convert to fraction form
    284,858.45/393,088.68 = 155,771.31/x
  3. Step 3: Cross multiply
    284,858.45x = 393,088.68 × 155,771.31
  4. Step 4: Simplify right side
    284,858.45x = 61,231,938,629.77
  5. Step 5: Solve for x
    x = 61,231,938,629.77/284,858.45
  6. Step 6: Final answer
    x = 214,955.67

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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.