Finding the Fourth Proportional to 396,874.02, 547,476.16 and 251,423.20
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Solution
The fourth proportional to 396,874.02, 547,476.16 and 251,423.20 is: 346,830.99
Step by Step Solution
- Step 1: Write the proportion equation
396,874.02 : 547,476.16 = 251,423.20 : x - Step 2: Convert to fraction form
396,874.02/547,476.16 = 251,423.20/x - Step 3: Cross multiply
396,874.02x = 547,476.16 × 251,423.20 - Step 4: Simplify right side
396,874.02x = 137,648,208,070.91 - Step 5: Solve for x
x = 137,648,208,070.91/396,874.02 - Step 6: Final answer
x = 346,830.99
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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.