Finding the Fourth Proportional to 397,922.60, 549,122.82 and 216,638.12
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Solution
The fourth proportional to 397,922.60, 549,122.82 and 216,638.12 is: 298,954.96
Step by Step Solution
- Step 1: Write the proportion equation
397,922.60 : 549,122.82 = 216,638.12 : x - Step 2: Convert to fraction form
397,922.60/549,122.82 = 216,638.12/x - Step 3: Cross multiply
397,922.60x = 549,122.82 × 216,638.12 - Step 4: Simplify right side
397,922.60x = 118,960,935,373.90 - Step 5: Solve for x
x = 118,960,935,373.90/397,922.60 - Step 6: Final answer
x = 298,954.96
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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.