Finding the Fourth Proportional to 221,105.61, 305,126.73 and 125,617.53
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Solution
The fourth proportional to 221,105.61, 305,126.73 and 125,617.53 is: 173,352.75
Step by Step Solution
- Step 1: Write the proportion equation
221,105.61 : 305,126.73 = 125,617.53 : x - Step 2: Convert to fraction form
221,105.61/305,126.73 = 125,617.53/x - Step 3: Cross multiply
221,105.61x = 305,126.73 × 125,617.53 - Step 4: Simplify right side
221,105.61x = 38,329,266,159.58 - Step 5: Solve for x
x = 38,329,266,159.58/221,105.61 - Step 6: Final answer
x = 173,352.75
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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.