Finding the Fourth Proportional to 211,998.55, 292,559.86 and 115,202.44
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Solution
The fourth proportional to 211,998.55, 292,559.86 and 115,202.44 is: 158,980.38
Step by Step Solution
- Step 1: Write the proportion equation
211,998.55 : 292,559.86 = 115,202.44 : x - Step 2: Convert to fraction form
211,998.55/292,559.86 = 115,202.44/x - Step 3: Cross multiply
211,998.55x = 292,559.86 × 115,202.44 - Step 4: Simplify right side
211,998.55x = 33,703,609,718.06 - Step 5: Solve for x
x = 33,703,609,718.06/211,998.55 - Step 6: Final answer
x = 158,980.38
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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.