Finding the Fourth Proportional to 199,356.68, 275,134.14 and 122,860.28
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Solution
The fourth proportional to 199,356.68, 275,134.14 and 122,860.28 is: 169,560.70
Step by Step Solution
- Step 1: Write the proportion equation
199,356.68 : 275,134.14 = 122,860.28 : x - Step 2: Convert to fraction form
199,356.68/275,134.14 = 122,860.28/x - Step 3: Cross multiply
199,356.68x = 275,134.14 × 122,860.28 - Step 4: Simplify right side
199,356.68x = 33,803,057,477.96 - Step 5: Solve for x
x = 33,803,057,477.96/199,356.68 - Step 6: Final answer
x = 169,560.70
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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.