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Finding the Fourth Proportional to 248,280.30, 372,128.85 and 114,878.79

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Solution

The fourth proportional to 248,280.30, 372,128.85 and 114,878.79 is: 172,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,280.30 : 372,128.85 = 114,878.79 : x
  2. Step 2: Convert to fraction form
    248,280.30/372,128.85 = 114,878.79/x
  3. Step 3: Cross multiply
    248,280.30x = 372,128.85 × 114,878.79
  4. Step 4: Simplify right side
    248,280.30x = 42,749,712,012.09
  5. Step 5: Solve for x
    x = 42,749,712,012.09/248,280.30
  6. Step 6: Final answer
    x = 172,183.26

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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.