Finding the Fourth Proportional to 319,414.08, 440,788.48 and 176,175.15
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Solution
The fourth proportional to 319,414.08, 440,788.48 and 176,175.15 is: 243,120.08
Step by Step Solution
- Step 1: Write the proportion equation
319,414.08 : 440,788.48 = 176,175.15 : x - Step 2: Convert to fraction form
319,414.08/440,788.48 = 176,175.15/x - Step 3: Cross multiply
319,414.08x = 440,788.48 × 176,175.15 - Step 4: Simplify right side
319,414.08x = 77,655,977,959.30 - Step 5: Solve for x
x = 77,655,977,959.30/319,414.08 - Step 6: Final answer
x = 243,120.08
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1.5x scale
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.