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Finding the Fourth Proportional to 248,112, 342,394.56 and 134,937.18

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Solution

The fourth proportional to 248,112, 342,394.56 and 134,937.18 is: 186,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,112 : 342,394.56 = 134,937.18 : x
  2. Step 2: Convert to fraction form
    248,112/342,394.56 = 134,937.18/x
  3. Step 3: Cross multiply
    248,112x = 342,394.56 × 134,937.18
  4. Step 4: Simplify right side
    248,112x = 46,201,756,373.74
  5. Step 5: Solve for x
    x = 46,201,756,373.74/248,112
  6. Step 6: Final answer
    x = 186,213.31

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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.