Finding the Fourth Proportional to 319,884.42, 441,440.64 and 176,654.19
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Solution
The fourth proportional to 319,884.42, 441,440.64 and 176,654.19 is: 243,782.86
Step by Step Solution
- Step 1: Write the proportion equation
319,884.42 : 441,440.64 = 176,654.19 : x - Step 2: Convert to fraction form
319,884.42/441,440.64 = 176,654.19/x - Step 3: Cross multiply
319,884.42x = 441,440.64 × 176,654.19 - Step 4: Simplify right side
319,884.42x = 77,982,338,692.28 - Step 5: Solve for x
x = 77,982,338,692.28/319,884.42 - Step 6: Final answer
x = 243,782.86
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1.5x scale
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.