Finding the Fourth Proportional to 286,708.67, 395,668.11 and 157,656.96
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Solution
The fourth proportional to 286,708.67, 395,668.11 and 157,656.96 is: 217,572.19
Step by Step Solution
- Step 1: Write the proportion equation
286,708.67 : 395,668.11 = 157,656.96 : x - Step 2: Convert to fraction form
286,708.67/395,668.11 = 157,656.96/x - Step 3: Cross multiply
286,708.67x = 395,668.11 × 157,656.96 - Step 4: Simplify right side
286,708.67x = 62,379,831,391.55 - Step 5: Solve for x
x = 62,379,831,391.55/286,708.67 - Step 6: Final answer
x = 217,572.19
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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.