Finding the Fourth Proportional to 382,794.57, 528,256.80 and 221,658.23
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Solution
The fourth proportional to 382,794.57, 528,256.80 and 221,658.23 is: 305,888.52
Step by Step Solution
- Step 1: Write the proportion equation
382,794.57 : 528,256.80 = 221,658.23 : x - Step 2: Convert to fraction form
382,794.57/528,256.80 = 221,658.23/x - Step 3: Cross multiply
382,794.57x = 528,256.80 × 221,658.23 - Step 4: Simplify right side
382,794.57x = 117,092,464,632.18 - Step 5: Solve for x
x = 117,092,464,632.18/382,794.57 - Step 6: Final answer
x = 305,888.52
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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.