Finding the Fourth Proportional to 392,854.08, 542,138.72 and 214,006.08
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Solution
The fourth proportional to 392,854.08, 542,138.72 and 214,006.08 is: 295,328.44
Step by Step Solution
- Step 1: Write the proportion equation
392,854.08 : 542,138.72 = 214,006.08 : x - Step 2: Convert to fraction form
392,854.08/542,138.72 = 214,006.08/x - Step 3: Cross multiply
392,854.08x = 542,138.72 × 214,006.08 - Step 4: Simplify right side
392,854.08x = 116,020,982,283.42 - Step 5: Solve for x
x = 116,020,982,283.42/392,854.08 - Step 6: Final answer
x = 295,328.44
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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.