Finding the Fourth Proportional to 221,090.67, 305,113.29 and 125,613.54
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Solution
The fourth proportional to 221,090.67, 305,113.29 and 125,613.54 is: 173,351.32
Step by Step Solution
- Step 1: Write the proportion equation
221,090.67 : 305,113.29 = 125,613.54 : x - Step 2: Convert to fraction form
221,090.67/305,113.29 = 125,613.54/x - Step 3: Cross multiply
221,090.67x = 305,113.29 × 125,613.54 - Step 4: Simplify right side
221,090.67x = 38,326,360,457.95 - Step 5: Solve for x
x = 38,326,360,457.95/221,090.67 - Step 6: Final answer
x = 173,351.32
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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.