Finding the Fourth Proportional to 319,460.36, 479,202.68 and 82,803.74
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Solution
The fourth proportional to 319,460.36, 479,202.68 and 82,803.74 is: 124,208.75
Step by Step Solution
- Step 1: Write the proportion equation
319,460.36 : 479,202.68 = 82,803.74 : x - Step 2: Convert to fraction form
319,460.36/479,202.68 = 82,803.74/x - Step 3: Cross multiply
319,460.36x = 479,202.68 × 82,803.74 - Step 4: Simplify right side
319,460.36x = 39,679,771,933.02 - Step 5: Solve for x
x = 39,679,771,933.02/319,460.36 - Step 6: Final answer
x = 124,208.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.