Finding the Fourth Proportional to 221,095.10, 305,122.05 and 124,329.40
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Solution
The fourth proportional to 221,095.10, 305,122.05 and 124,329.40 is: 171,580.65
Step by Step Solution
- Step 1: Write the proportion equation
221,095.10 : 305,122.05 = 124,329.40 : x - Step 2: Convert to fraction form
221,095.10/305,122.05 = 124,329.40/x - Step 3: Cross multiply
221,095.10x = 305,122.05 × 124,329.40 - Step 4: Simplify right side
221,095.10x = 37,935,640,781.62 - Step 5: Solve for x
x = 37,935,640,781.62/221,095.10 - Step 6: Final answer
x = 171,580.65
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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.