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Finding the Fourth Proportional to 242,946, 335,249.28 and 139,583.52

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Solution

The fourth proportional to 242,946, 335,249.28 and 139,583.52 is: 192,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,946 : 335,249.28 = 139,583.52 : x
  2. Step 2: Convert to fraction form
    242,946/335,249.28 = 139,583.52/x
  3. Step 3: Cross multiply
    242,946x = 335,249.28 × 139,583.52
  4. Step 4: Simplify right side
    242,946x = 46,795,274,579.87
  5. Step 5: Solve for x
    x = 46,795,274,579.87/242,946
  6. Step 6: Final answer
    x = 192,615.95

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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.