Finding the Fourth Proportional to 386,307.92, 533,103.25 and 216,542.05
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Solution
The fourth proportional to 386,307.92, 533,103.25 and 216,542.05 is: 298,827.09
Step by Step Solution
- Step 1: Write the proportion equation
386,307.92 : 533,103.25 = 216,542.05 : x - Step 2: Convert to fraction form
386,307.92/533,103.25 = 216,542.05/x - Step 3: Cross multiply
386,307.92x = 533,103.25 × 216,542.05 - Step 4: Simplify right side
386,307.92x = 115,439,270,616.66 - Step 5: Solve for x
x = 115,439,270,616.66/386,307.92 - Step 6: Final answer
x = 298,827.09
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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.