Finding the Fourth Proportional to 330,119.40, 455,566.14 and 186,907.08
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Solution
The fourth proportional to 330,119.40, 455,566.14 and 186,907.08 is: 257,932.54
Step by Step Solution
- Step 1: Write the proportion equation
330,119.40 : 455,566.14 = 186,907.08 : x - Step 2: Convert to fraction form
330,119.40/455,566.14 = 186,907.08/x - Step 3: Cross multiply
330,119.40x = 455,566.14 × 186,907.08 - Step 4: Simplify right side
330,119.40x = 85,148,536,974.27 - Step 5: Solve for x
x = 85,148,536,974.27/330,119.40 - Step 6: Final answer
x = 257,932.54
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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.