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Finding the Fourth Proportional to 248,347.79, 342,720.59 and 140,917.52

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Solution

The fourth proportional to 248,347.79, 342,720.59 and 140,917.52 is: 194,466.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,347.79 : 342,720.59 = 140,917.52 : x
  2. Step 2: Convert to fraction form
    248,347.79/342,720.59 = 140,917.52/x
  3. Step 3: Cross multiply
    248,347.79x = 342,720.59 × 140,917.52
  4. Step 4: Simplify right side
    248,347.79x = 48,295,335,747.95
  5. Step 5: Solve for x
    x = 48,295,335,747.95/248,347.79
  6. Step 6: Final answer
    x = 194,466.54

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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.