Finding the Fourth Proportional to 187,361.30, 258,564.75 and 102,478.36
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Solution
The fourth proportional to 187,361.30, 258,564.75 and 102,478.36 is: 141,423.50
Step by Step Solution
- Step 1: Write the proportion equation
187,361.30 : 258,564.75 = 102,478.36 : x - Step 2: Convert to fraction form
187,361.30/258,564.75 = 102,478.36/x - Step 3: Cross multiply
187,361.30x = 258,564.75 × 102,478.36 - Step 4: Simplify right side
187,361.30x = 26,497,291,533.81 - Step 5: Solve for x
x = 26,497,291,533.81/187,361.30 - Step 6: Final answer
x = 141,423.50
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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.