Finding the Fourth Proportional to 319,873.60, 441,432.42 and 176,642.68
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Solution
The fourth proportional to 319,873.60, 441,432.42 and 176,642.68 is: 243,770.68
Step by Step Solution
- Step 1: Write the proportion equation
319,873.60 : 441,432.42 = 176,642.68 : x - Step 2: Convert to fraction form
319,873.60/441,432.42 = 176,642.68/x - Step 3: Cross multiply
319,873.60x = 441,432.42 × 176,642.68 - Step 4: Simplify right side
319,873.60x = 77,975,805,707.69 - Step 5: Solve for x
x = 77,975,805,707.69/319,873.60 - Step 6: Final answer
x = 243,770.68
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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.