Finding the Fourth Proportional to 238,320.40, 328,883.36 and 129,425.08
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Solution
The fourth proportional to 238,320.40, 328,883.36 and 129,425.08 is: 178,607.27
Step by Step Solution
- Step 1: Write the proportion equation
238,320.40 : 328,883.36 = 129,425.08 : x - Step 2: Convert to fraction form
238,320.40/328,883.36 = 129,425.08/x - Step 3: Cross multiply
238,320.40x = 328,883.36 × 129,425.08 - Step 4: Simplify right side
238,320.40x = 42,565,755,178.67 - Step 5: Solve for x
x = 42,565,755,178.67/238,320.40 - Step 6: Final answer
x = 178,607.27
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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.