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Finding the Fourth Proportional to 248,314.70, 342,650.54 and 139,394.10

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Solution

The fourth proportional to 248,314.70, 342,650.54 and 139,394.10 is: 192,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,314.70 : 342,650.54 = 139,394.10 : x
  2. Step 2: Convert to fraction form
    248,314.70/342,650.54 = 139,394.10/x
  3. Step 3: Cross multiply
    248,314.70x = 342,650.54 × 139,394.10
  4. Step 4: Simplify right side
    248,314.70x = 47,763,463,637.81
  5. Step 5: Solve for x
    x = 47,763,463,637.81/248,314.70
  6. Step 6: Final answer
    x = 192,350.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.