Finding the Fourth Proportional to 221,740.47, 305,642.35 and 173,257.62
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Solution
The fourth proportional to 221,740.47, 305,642.35 and 173,257.62 is: 238,814.62
Step by Step Solution
- Step 1: Write the proportion equation
221,740.47 : 305,642.35 = 173,257.62 : x - Step 2: Convert to fraction form
221,740.47/305,642.35 = 173,257.62/x - Step 3: Cross multiply
221,740.47x = 305,642.35 × 173,257.62 - Step 4: Simplify right side
221,740.47x = 52,954,866,132.21 - Step 5: Solve for x
x = 52,954,866,132.21/221,740.47 - Step 6: Final answer
x = 238,814.62
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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.