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Finding the Fourth Proportional to 243,761.49, 336,361.34 and 134,858.48

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Solution

The fourth proportional to 243,761.49, 336,361.34 and 134,858.48 is: 186,088.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,761.49 : 336,361.34 = 134,858.48 : x
  2. Step 2: Convert to fraction form
    243,761.49/336,361.34 = 134,858.48/x
  3. Step 3: Cross multiply
    243,761.49x = 336,361.34 × 134,858.48
  4. Step 4: Simplify right side
    243,761.49x = 45,361,177,698.50
  5. Step 5: Solve for x
    x = 45,361,177,698.50/243,761.49
  6. Step 6: Final answer
    x = 186,088.37

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1.5x scale

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.