Finding the Fourth Proportional to 292,066.75, 403,052.14 and 157,930.75
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Solution
The fourth proportional to 292,066.75, 403,052.14 and 157,930.75 is: 217,944.45
Step by Step Solution
- Step 1: Write the proportion equation
292,066.75 : 403,052.14 = 157,930.75 : x - Step 2: Convert to fraction form
292,066.75/403,052.14 = 157,930.75/x - Step 3: Cross multiply
292,066.75x = 403,052.14 × 157,930.75 - Step 4: Simplify right side
292,066.75x = 63,654,326,759.31 - Step 5: Solve for x
x = 63,654,326,759.31/292,066.75 - Step 6: Final answer
x = 217,944.45
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1.5x scale
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.