Finding the Fourth Proportional to 319,421.83, 440,800.33 and 176,181.53
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Solution
The fourth proportional to 319,421.83, 440,800.33 and 176,181.53 is: 243,129.52
Step by Step Solution
- Step 1: Write the proportion equation
319,421.83 : 440,800.33 = 176,181.53 : x - Step 2: Convert to fraction form
319,421.83/440,800.33 = 176,181.53/x - Step 3: Cross multiply
319,421.83x = 440,800.33 × 176,181.53 - Step 4: Simplify right side
319,421.83x = 77,660,876,729.29 - Step 5: Solve for x
x = 77,660,876,729.29/319,421.83 - Step 6: Final answer
x = 243,129.52
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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.