Finding the Fourth Proportional to 376,885.54, 520,121.99 and 213,573.70
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Solution
The fourth proportional to 376,885.54, 520,121.99 and 213,573.70 is: 294,743.01
Step by Step Solution
- Step 1: Write the proportion equation
376,885.54 : 520,121.99 = 213,573.70 : x - Step 2: Convert to fraction form
376,885.54/520,121.99 = 213,573.70/x - Step 3: Cross multiply
376,885.54x = 520,121.99 × 213,573.70 - Step 4: Simplify right side
376,885.54x = 111,084,377,855.66 - Step 5: Solve for x
x = 111,084,377,855.66/376,885.54 - Step 6: Final answer
x = 294,743.01
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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.