Finding the Fourth Proportional to 238,312.24, 328,869.60 and 129,415.63
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Solution
The fourth proportional to 238,312.24, 328,869.60 and 129,415.63 is: 178,592.87
Step by Step Solution
- Step 1: Write the proportion equation
238,312.24 : 328,869.60 = 129,415.63 : x - Step 2: Convert to fraction form
238,312.24/328,869.60 = 129,415.63/x - Step 3: Cross multiply
238,312.24x = 328,869.60 × 129,415.63 - Step 4: Simplify right side
238,312.24x = 42,560,866,471.85 - Step 5: Solve for x
x = 42,560,866,471.85/238,312.24 - Step 6: Final answer
x = 178,592.87
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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.