Finding the Fourth Proportional to 511,982.97, 767,985.54 and 156,989.13
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Solution
The fourth proportional to 511,982.97, 767,985.54 and 156,989.13 is: 235,487.09
Step by Step Solution
- Step 1: Write the proportion equation
511,982.97 : 767,985.54 = 156,989.13 : x - Step 2: Convert to fraction form
511,982.97/767,985.54 = 156,989.13/x - Step 3: Cross multiply
511,982.97x = 767,985.54 × 156,989.13 - Step 4: Simplify right side
511,982.97x = 120,565,381,777.18 - Step 5: Solve for x
x = 120,565,381,777.18/511,982.97 - Step 6: Final answer
x = 235,487.09
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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.