Finding the Fourth Proportional to 299,972.72, 413,122.20 and 293,440.88
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Solution
The fourth proportional to 299,972.72, 413,122.20 and 293,440.88 is: 404,126.55
Step by Step Solution
- Step 1: Write the proportion equation
299,972.72 : 413,122.20 = 293,440.88 : x - Step 2: Convert to fraction form
299,972.72/413,122.20 = 293,440.88/x - Step 3: Cross multiply
299,972.72x = 413,122.20 × 293,440.88 - Step 4: Simplify right side
299,972.72x = 121,226,941,915.54 - Step 5: Solve for x
x = 121,226,941,915.54/299,972.72 - Step 6: Final answer
x = 404,126.55
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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.