Finding the Fourth Proportional to 319,836.60, 441,381.36 and 176,605.62
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Solution
The fourth proportional to 319,836.60, 441,381.36 and 176,605.62 is: 243,719.54
Step by Step Solution
- Step 1: Write the proportion equation
319,836.60 : 441,381.36 = 176,605.62 : x - Step 2: Convert to fraction form
319,836.60/441,381.36 = 176,605.62/x - Step 3: Cross multiply
319,836.60x = 441,381.36 × 176,605.62 - Step 4: Simplify right side
319,836.60x = 77,950,428,739.24 - Step 5: Solve for x
x = 77,950,428,739.24/319,836.60 - Step 6: Final answer
x = 243,719.54
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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.