Finding the Fourth Proportional to 319,292.80, 440,643.90 and 176,052.67
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Solution
The fourth proportional to 319,292.80, 440,643.90 and 176,052.67 is: 242,963.62
Step by Step Solution
- Step 1: Write the proportion equation
319,292.80 : 440,643.90 = 176,052.67 : x - Step 2: Convert to fraction form
319,292.80/440,643.90 = 176,052.67/x - Step 3: Cross multiply
319,292.80x = 440,643.90 × 176,052.67 - Step 4: Simplify right side
319,292.80x = 77,576,535,114.21 - Step 5: Solve for x
x = 77,576,535,114.21/319,292.80 - Step 6: Final answer
x = 242,963.62
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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.