Finding the Fourth Proportional to 189,350.81, 261,302.63 and 103,308.53
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Solution
The fourth proportional to 189,350.81, 261,302.63 and 103,308.53 is: 142,564.95
Step by Step Solution
- Step 1: Write the proportion equation
189,350.81 : 261,302.63 = 103,308.53 : x - Step 2: Convert to fraction form
189,350.81/261,302.63 = 103,308.53/x - Step 3: Cross multiply
189,350.81x = 261,302.63 × 103,308.53 - Step 4: Simplify right side
189,350.81x = 26,994,788,767.38 - Step 5: Solve for x
x = 26,994,788,767.38/189,350.81 - Step 6: Final answer
x = 142,564.95
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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.