Finding the Fourth Proportional to 389,405.07, 537,386.00 and 228,376.26
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Solution
The fourth proportional to 389,405.07, 537,386.00 and 228,376.26 is: 315,163.34
Step by Step Solution
- Step 1: Write the proportion equation
389,405.07 : 537,386.00 = 228,376.26 : x - Step 2: Convert to fraction form
389,405.07/537,386.00 = 228,376.26/x - Step 3: Cross multiply
389,405.07x = 537,386.00 × 228,376.26 - Step 4: Simplify right side
389,405.07x = 122,726,203,714.48 - Step 5: Solve for x
x = 122,726,203,714.48/389,405.07 - Step 6: Final answer
x = 315,163.34
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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.