Finding the Fourth Proportional to 319,556.05, 440,987.01 and 176,316.07
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Solution
The fourth proportional to 319,556.05, 440,987.01 and 176,316.07 is: 243,315.99
Step by Step Solution
- Step 1: Write the proportion equation
319,556.05 : 440,987.01 = 176,316.07 : x - Step 2: Convert to fraction form
319,556.05/440,987.01 = 176,316.07/x - Step 3: Cross multiply
319,556.05x = 440,987.01 × 176,316.07 - Step 4: Simplify right side
319,556.05x = 77,753,096,524.25 - Step 5: Solve for x
x = 77,753,096,524.25/319,556.05 - Step 6: Final answer
x = 243,315.99
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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.