Finding the Fourth Proportional to 299,639.79, 413,515.08 and 172,315.44
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Solution
The fourth proportional to 299,639.79, 413,515.08 and 172,315.44 is: 237,802.31
Step by Step Solution
- Step 1: Write the proportion equation
299,639.79 : 413,515.08 = 172,315.44 : x - Step 2: Convert to fraction form
299,639.79/413,515.08 = 172,315.44/x - Step 3: Cross multiply
299,639.79x = 413,515.08 × 172,315.44 - Step 4: Simplify right side
299,639.79x = 71,255,032,956.84 - Step 5: Solve for x
x = 71,255,032,956.84/299,639.79 - Step 6: Final answer
x = 237,802.31
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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.