Finding the Fourth Proportional to 189,663.84, 261,411.84 and 147,142.08
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Solution
The fourth proportional to 189,663.84, 261,411.84 and 147,142.08 is: 202,804.51
Step by Step Solution
- Step 1: Write the proportion equation
189,663.84 : 261,411.84 = 147,142.08 : x - Step 2: Convert to fraction form
189,663.84/261,411.84 = 147,142.08/x - Step 3: Cross multiply
189,663.84x = 261,411.84 × 147,142.08 - Step 4: Simplify right side
189,663.84x = 38,464,681,874.23 - Step 5: Solve for x
x = 38,464,681,874.23/189,663.84 - Step 6: Final answer
x = 202,804.51
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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.