Finding the Fourth Proportional to 286,672.36, 395,612.58 and 157,616.28
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Solution
The fourth proportional to 286,672.36, 395,612.58 and 157,616.28 is: 217,513.06
Step by Step Solution
- Step 1: Write the proportion equation
286,672.36 : 395,612.58 = 157,616.28 : x - Step 2: Convert to fraction form
286,672.36/395,612.58 = 157,616.28/x - Step 3: Cross multiply
286,672.36x = 395,612.58 × 157,616.28 - Step 4: Simplify right side
286,672.36x = 62,354,983,180.80 - Step 5: Solve for x
x = 62,354,983,180.80/286,672.36 - Step 6: Final answer
x = 217,513.06
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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.