Finding the Fourth Proportional to 258,377.58, 356,577.09 and 143,657.13
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Solution
The fourth proportional to 258,377.58, 356,577.09 and 143,657.13 is: 198,255.75
Step by Step Solution
- Step 1: Write the proportion equation
258,377.58 : 356,577.09 = 143,657.13 : x - Step 2: Convert to fraction form
258,377.58/356,577.09 = 143,657.13/x - Step 3: Cross multiply
258,377.58x = 356,577.09 × 143,657.13 - Step 4: Simplify right side
258,377.58x = 51,224,841,373.15 - Step 5: Solve for x
x = 51,224,841,373.15/258,377.58 - Step 6: Final answer
x = 198,255.75
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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.