Finding the Fourth Proportional to 319,138.28, 440,420.65 and 183,197.06
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Solution
The fourth proportional to 319,138.28, 440,420.65 and 183,197.06 is: 252,817.58
Step by Step Solution
- Step 1: Write the proportion equation
319,138.28 : 440,420.65 = 183,197.06 : x - Step 2: Convert to fraction form
319,138.28/440,420.65 = 183,197.06/x - Step 3: Cross multiply
319,138.28x = 440,420.65 × 183,197.06 - Step 4: Simplify right side
319,138.28x = 80,683,768,243.29 - Step 5: Solve for x
x = 80,683,768,243.29/319,138.28 - Step 6: Final answer
x = 252,817.58
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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.