Finding the Fourth Proportional to 289,266.91, 399,177.30 and 158,442.49
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Solution
The fourth proportional to 289,266.91, 399,177.30 and 158,442.49 is: 218,644.59
Step by Step Solution
- Step 1: Write the proportion equation
289,266.91 : 399,177.30 = 158,442.49 : x - Step 2: Convert to fraction form
289,266.91/399,177.30 = 158,442.49/x - Step 3: Cross multiply
289,266.91x = 399,177.30 × 158,442.49 - Step 4: Simplify right side
289,266.91x = 63,246,643,367.59 - Step 5: Solve for x
x = 63,246,643,367.59/289,266.91 - Step 6: Final answer
x = 218,644.59
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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.