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Finding the Fourth Proportional to 284,317.80, 426,282.30 and 134,629.80

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Solution

The fourth proportional to 284,317.80, 426,282.30 and 134,629.80 is: 201,852.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,317.80 : 426,282.30 = 134,629.80 : x
  2. Step 2: Convert to fraction form
    284,317.80/426,282.30 = 134,629.80/x
  3. Step 3: Cross multiply
    284,317.80x = 426,282.30 × 134,629.80
  4. Step 4: Simplify right side
    284,317.80x = 57,390,300,792.54
  5. Step 5: Solve for x
    x = 57,390,300,792.54/284,317.80
  6. Step 6: Final answer
    x = 201,852.65

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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.