Finding the Fourth Proportional to 440,058.95, 660,514.13 and 212,514.05
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Solution
The fourth proportional to 440,058.95, 660,514.13 and 212,514.05 is: 318,976.66
Step by Step Solution
- Step 1: Write the proportion equation
440,058.95 : 660,514.13 = 212,514.05 : x - Step 2: Convert to fraction form
440,058.95/660,514.13 = 212,514.05/x - Step 3: Cross multiply
440,058.95x = 660,514.13 × 212,514.05 - Step 4: Simplify right side
440,058.95x = 140,368,533,437.24 - Step 5: Solve for x
x = 140,368,533,437.24/440,058.95 - Step 6: Final answer
x = 318,976.66
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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.