Finding the Fourth Proportional to 319,563.84, 440,997.68 and 176,323.84
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Solution
The fourth proportional to 319,563.84, 440,997.68 and 176,323.84 is: 243,326.67
Step by Step Solution
- Step 1: Write the proportion equation
319,563.84 : 440,997.68 = 176,323.84 : x - Step 2: Convert to fraction form
319,563.84/440,997.68 = 176,323.84/x - Step 3: Cross multiply
319,563.84x = 440,997.68 × 176,323.84 - Step 4: Simplify right side
319,563.84x = 77,758,404,368.69 - Step 5: Solve for x
x = 77,758,404,368.69/319,563.84 - Step 6: Final answer
x = 243,326.67
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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.