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Finding the Fourth Proportional to 282,028.55, 389,136.43 and 167,248.86

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Solution

The fourth proportional to 282,028.55, 389,136.43 and 167,248.86 is: 230,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,028.55 : 389,136.43 = 167,248.86 : x
  2. Step 2: Convert to fraction form
    282,028.55/389,136.43 = 167,248.86/x
  3. Step 3: Cross multiply
    282,028.55x = 389,136.43 × 167,248.86
  4. Step 4: Simplify right side
    282,028.55x = 65,082,624,301.97
  5. Step 5: Solve for x
    x = 65,082,624,301.97/282,028.55
  6. Step 6: Final answer
    x = 230,766.09

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1.5x scale

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.