Finding the Fourth Proportional to 381,242.38, 526,177.56 and 211,531.18
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Solution
The fourth proportional to 381,242.38, 526,177.56 and 211,531.18 is: 291,948.03
Step by Step Solution
- Step 1: Write the proportion equation
381,242.38 : 526,177.56 = 211,531.18 : x - Step 2: Convert to fraction form
381,242.38/526,177.56 = 211,531.18/x - Step 3: Cross multiply
381,242.38x = 526,177.56 × 211,531.18 - Step 4: Simplify right side
381,242.38x = 111,302,960,156.32 - Step 5: Solve for x
x = 111,302,960,156.32/381,242.38 - Step 6: Final answer
x = 291,948.03
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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.