Finding the Fourth Proportional to 381,330.93, 526,235.24 and 209,251.78
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Solution
The fourth proportional to 381,330.93, 526,235.24 and 209,251.78 is: 288,766.66
Step by Step Solution
- Step 1: Write the proportion equation
381,330.93 : 526,235.24 = 209,251.78 : x - Step 2: Convert to fraction form
381,330.93/526,235.24 = 209,251.78/x - Step 3: Cross multiply
381,330.93x = 526,235.24 × 209,251.78 - Step 4: Simplify right side
381,330.93x = 110,115,658,902.21 - Step 5: Solve for x
x = 110,115,658,902.21/381,330.93 - Step 6: Final answer
x = 288,766.66
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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.