Finding the Fourth Proportional to 230,902.84, 318,642.84 and 128,930.02
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Solution
The fourth proportional to 230,902.84, 318,642.84 and 128,930.02 is: 177,921.71
Step by Step Solution
- Step 1: Write the proportion equation
230,902.84 : 318,642.84 = 128,930.02 : x - Step 2: Convert to fraction form
230,902.84/318,642.84 = 128,930.02/x - Step 3: Cross multiply
230,902.84x = 318,642.84 × 128,930.02 - Step 4: Simplify right side
230,902.84x = 41,082,627,734.06 - Step 5: Solve for x
x = 41,082,627,734.06/230,902.84 - Step 6: Final answer
x = 177,921.71
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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.