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Finding the Fourth Proportional to 243,716.54, 336,328.83 and 136,286.82

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Solution

The fourth proportional to 243,716.54, 336,328.83 and 136,286.82 is: 188,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,716.54 : 336,328.83 = 136,286.82 : x
  2. Step 2: Convert to fraction form
    243,716.54/336,328.83 = 136,286.82/x
  3. Step 3: Cross multiply
    243,716.54x = 336,328.83 × 136,286.82
  4. Step 4: Simplify right side
    243,716.54x = 45,837,186,715.02
  5. Step 5: Solve for x
    x = 45,837,186,715.02/243,716.54
  6. Step 6: Final answer
    x = 188,075.82

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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.