Finding the Fourth Proportional to 221,986.17, 306,341.52 and 141,396.42
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Solution
The fourth proportional to 221,986.17, 306,341.52 and 141,396.42 is: 195,127.45
Step by Step Solution
- Step 1: Write the proportion equation
221,986.17 : 306,341.52 = 141,396.42 : x - Step 2: Convert to fraction form
221,986.17/306,341.52 = 141,396.42/x - Step 3: Cross multiply
221,986.17x = 306,341.52 × 141,396.42 - Step 4: Simplify right side
221,986.17x = 43,315,594,225.36 - Step 5: Solve for x
x = 43,315,594,225.36/221,986.17 - Step 6: Final answer
x = 195,127.45
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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.