Finding the Fourth Proportional to 397,946.84, 549,163.26 and 216,658.31
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Solution
The fourth proportional to 397,946.84, 549,163.26 and 216,658.31 is: 298,986.62
Step by Step Solution
- Step 1: Write the proportion equation
397,946.84 : 549,163.26 = 216,658.31 : x - Step 2: Convert to fraction form
397,946.84/549,163.26 = 216,658.31/x - Step 3: Cross multiply
397,946.84x = 549,163.26 × 216,658.31 - Step 4: Simplify right side
397,946.84x = 118,980,781,079.87 - Step 5: Solve for x
x = 118,980,781,079.87/397,946.84 - Step 6: Final answer
x = 298,986.62
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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.