Finding the Fourth Proportional to 355,065.24, 489,924.58 and 209,894.44
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Solution
The fourth proportional to 355,065.24, 489,924.58 and 209,894.44 is: 289,615.64
Step by Step Solution
- Step 1: Write the proportion equation
355,065.24 : 489,924.58 = 209,894.44 : x - Step 2: Convert to fraction form
355,065.24/489,924.58 = 209,894.44/x - Step 3: Cross multiply
355,065.24x = 489,924.58 × 209,894.44 - Step 4: Simplify right side
355,065.24x = 102,832,445,361.34 - Step 5: Solve for x
x = 102,832,445,361.34/355,065.24 - Step 6: Final answer
x = 289,615.64
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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.