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Finding the Fourth Proportional to 266,716.80, 368,104 and 153,544.32

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Solution

The fourth proportional to 266,716.80, 368,104 and 153,544.32 is: 211,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,716.80 : 368,104 = 153,544.32 : x
  2. Step 2: Convert to fraction form
    266,716.80/368,104 = 153,544.32/x
  3. Step 3: Cross multiply
    266,716.80x = 368,104 × 153,544.32
  4. Step 4: Simplify right side
    266,716.80x = 56,520,278,369.28
  5. Step 5: Solve for x
    x = 56,520,278,369.28/266,716.80
  6. Step 6: Final answer
    x = 211,911.20

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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.