Finding the Fourth Proportional to 257,709.23, 385,842.59 and 194,330.99
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Solution
The fourth proportional to 257,709.23, 385,842.59 and 194,330.99 is: 290,952.61
Step by Step Solution
- Step 1: Write the proportion equation
257,709.23 : 385,842.59 = 194,330.99 : x - Step 2: Convert to fraction form
257,709.23/385,842.59 = 194,330.99/x - Step 3: Cross multiply
257,709.23x = 385,842.59 × 194,330.99 - Step 4: Simplify right side
257,709.23x = 74,981,173,220.56 - Step 5: Solve for x
x = 74,981,173,220.56/257,709.23 - Step 6: Final answer
x = 290,952.61
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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.