Finding the Fourth Proportional to 511,381.18, 767,102.01 and 156,419.74
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Solution
The fourth proportional to 511,381.18, 767,102.01 and 156,419.74 is: 234,638.86
Step by Step Solution
- Step 1: Write the proportion equation
511,381.18 : 767,102.01 = 156,419.74 : x - Step 2: Convert to fraction form
511,381.18/767,102.01 = 156,419.74/x - Step 3: Cross multiply
511,381.18x = 767,102.01 × 156,419.74 - Step 4: Simplify right side
511,381.18x = 119,989,896,957.68 - Step 5: Solve for x
x = 119,989,896,957.68/511,381.18 - Step 6: Final answer
x = 234,638.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.