Finding the Fourth Proportional to 221,356.67, 305,434.07 and 124,547.09
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Solution
The fourth proportional to 221,356.67, 305,434.07 and 124,547.09 is: 171,853.52
Step by Step Solution
- Step 1: Write the proportion equation
221,356.67 : 305,434.07 = 124,547.09 : x - Step 2: Convert to fraction form
221,356.67/305,434.07 = 124,547.09/x - Step 3: Cross multiply
221,356.67x = 305,434.07 × 124,547.09 - Step 4: Simplify right side
221,356.67x = 38,040,923,219.04 - Step 5: Solve for x
x = 38,040,923,219.04/221,356.67 - Step 6: Final answer
x = 171,853.52
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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.