Finding the Fourth Proportional to 211,017.38, 291,202.58 and 115,525.68
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Solution
The fourth proportional to 211,017.38, 291,202.58 and 115,525.68 is: 159,424.67
Step by Step Solution
- Step 1: Write the proportion equation
211,017.38 : 291,202.58 = 115,525.68 : x - Step 2: Convert to fraction form
211,017.38/291,202.58 = 115,525.68/x - Step 3: Cross multiply
211,017.38x = 291,202.58 × 115,525.68 - Step 4: Simplify right side
211,017.38x = 33,641,376,072.25 - Step 5: Solve for x
x = 33,641,376,072.25/211,017.38 - Step 6: Final answer
x = 159,424.67
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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.