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Finding the Fourth Proportional to 248,256, 372,457.44 and 143,150.40

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Solution

The fourth proportional to 248,256, 372,457.44 and 143,150.40 is: 214,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,256 : 372,457.44 = 143,150.40 : x
  2. Step 2: Convert to fraction form
    248,256/372,457.44 = 143,150.40/x
  3. Step 3: Cross multiply
    248,256x = 372,457.44 × 143,150.40
  4. Step 4: Simplify right side
    248,256x = 53,317,431,518.98
  5. Step 5: Solve for x
    x = 53,317,431,518.98/248,256
  6. Step 6: Final answer
    x = 214,767.95

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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.