Finding the Fourth Proportional to 289,364.88, 399,461.98 and 192,729.55
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Solution
The fourth proportional to 289,364.88, 399,461.98 and 192,729.55 is: 266,058.99
Step by Step Solution
- Step 1: Write the proportion equation
289,364.88 : 399,461.98 = 192,729.55 : x - Step 2: Convert to fraction form
289,364.88/399,461.98 = 192,729.55/x - Step 3: Cross multiply
289,364.88x = 399,461.98 × 192,729.55 - Step 4: Simplify right side
289,364.88x = 76,988,127,647.51 - Step 5: Solve for x
x = 76,988,127,647.51/289,364.88 - Step 6: Final answer
x = 266,058.99
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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.