Finding the Fourth Proportional to 197,653.68, 272,536.38 and 157,369.14
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Solution
The fourth proportional to 197,653.68, 272,536.38 and 157,369.14 is: 216,989.72
Step by Step Solution
- Step 1: Write the proportion equation
197,653.68 : 272,536.38 = 157,369.14 : x - Step 2: Convert to fraction form
197,653.68/272,536.38 = 157,369.14/x - Step 3: Cross multiply
197,653.68x = 272,536.38 × 157,369.14 - Step 4: Simplify right side
197,653.68x = 42,888,815,739.31 - Step 5: Solve for x
x = 42,888,815,739.31/197,653.68 - Step 6: Final answer
x = 216,989.72
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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.