Finding the Fourth Proportional to 230,532.18, 318,135.77 and 128,564.08
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Solution
The fourth proportional to 230,532.18, 318,135.77 and 128,564.08 is: 177,419.19
Step by Step Solution
- Step 1: Write the proportion equation
230,532.18 : 318,135.77 = 128,564.08 : x - Step 2: Convert to fraction form
230,532.18/318,135.77 = 128,564.08/x - Step 3: Cross multiply
230,532.18x = 318,135.77 × 128,564.08 - Step 4: Simplify right side
230,532.18x = 40,900,831,629.10 - Step 5: Solve for x
x = 40,900,831,629.10/230,532.18 - Step 6: Final answer
x = 177,419.19
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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.