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Finding the Fourth Proportional to 243,863.26, 336,544.37 and 136,426.88

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Solution

The fourth proportional to 243,863.26, 336,544.37 and 136,426.88 is: 188,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,863.26 : 336,544.37 = 136,426.88 : x
  2. Step 2: Convert to fraction form
    243,863.26/336,544.37 = 136,426.88/x
  3. Step 3: Cross multiply
    243,863.26x = 336,544.37 × 136,426.88
  4. Step 4: Simplify right side
    243,863.26x = 45,913,699,051.49
  5. Step 5: Solve for x
    x = 45,913,699,051.49/243,863.26
  6. Step 6: Final answer
    x = 188,276.41

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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.