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Finding the Fourth Proportional to 255,285.44, 384,839.44 and 238,158.80

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Solution

The fourth proportional to 255,285.44, 384,839.44 and 238,158.80 is: 359,021.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,285.44 : 384,839.44 = 238,158.80 : x
  2. Step 2: Convert to fraction form
    255,285.44/384,839.44 = 238,158.80/x
  3. Step 3: Cross multiply
    255,285.44x = 384,839.44 × 238,158.80
  4. Step 4: Simplify right side
    255,285.44x = 91,652,899,223.07
  5. Step 5: Solve for x
    x = 91,652,899,223.07/255,285.44
  6. Step 6: Final answer
    x = 359,021.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.