Finding the Fourth Proportional to 231,420.42, 319,355.88 and 130,818.42
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Solution
The fourth proportional to 231,420.42, 319,355.88 and 130,818.42 is: 180,526.99
Step by Step Solution
- Step 1: Write the proportion equation
231,420.42 : 319,355.88 = 130,818.42 : x - Step 2: Convert to fraction form
231,420.42/319,355.88 = 130,818.42/x - Step 3: Cross multiply
231,420.42x = 319,355.88 × 130,818.42 - Step 4: Simplify right side
231,420.42x = 41,777,631,639.31 - Step 5: Solve for x
x = 41,777,631,639.31/231,420.42 - Step 6: Final answer
x = 180,526.99
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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.