Finding the Fourth Proportional to 286,566.43, 395,465.25 and 157,518.99
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Solution
The fourth proportional to 286,566.43, 395,465.25 and 157,518.99 is: 217,378.17
Step by Step Solution
- Step 1: Write the proportion equation
286,566.43 : 395,465.25 = 157,518.99 : x - Step 2: Convert to fraction form
286,566.43/395,465.25 = 157,518.99/x - Step 3: Cross multiply
286,566.43x = 395,465.25 × 157,518.99 - Step 4: Simplify right side
286,566.43x = 62,293,286,760.10 - Step 5: Solve for x
x = 62,293,286,760.10/286,566.43 - Step 6: Final answer
x = 217,378.17
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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.