Finding the Fourth Proportional to 203,215.90, 304,495.80 and 128,201.80
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Solution
The fourth proportional to 203,215.90, 304,495.80 and 128,201.80 is: 192,095.74
Step by Step Solution
- Step 1: Write the proportion equation
203,215.90 : 304,495.80 = 128,201.80 : x - Step 2: Convert to fraction form
203,215.90/304,495.80 = 128,201.80/x - Step 3: Cross multiply
203,215.90x = 304,495.80 × 128,201.80 - Step 4: Simplify right side
203,215.90x = 39,036,909,652.44 - Step 5: Solve for x
x = 39,036,909,652.44/203,215.90 - Step 6: Final answer
x = 192,095.74
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.