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Finding the Fourth Proportional to 248,292.96, 342,620.60 and 139,372.35

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Solution

The fourth proportional to 248,292.96, 342,620.60 and 139,372.35 is: 192,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,292.96 : 342,620.60 = 139,372.35 : x
  2. Step 2: Convert to fraction form
    248,292.96/342,620.60 = 139,372.35/x
  3. Step 3: Cross multiply
    248,292.96x = 342,620.60 × 139,372.35
  4. Step 4: Simplify right side
    248,292.96x = 47,751,837,483.55
  5. Step 5: Solve for x
    x = 47,751,837,483.55/248,292.96
  6. Step 6: Final answer
    x = 192,320.55

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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.