Finding the Fourth Proportional to 238,478.95, 329,029.18 and 142,950.79
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Solution
The fourth proportional to 238,478.95, 329,029.18 and 142,950.79 is: 197,229.07
Step by Step Solution
- Step 1: Write the proportion equation
238,478.95 : 329,029.18 = 142,950.79 : x - Step 2: Convert to fraction form
238,478.95/329,029.18 = 142,950.79/x - Step 3: Cross multiply
238,478.95x = 329,029.18 × 142,950.79 - Step 4: Simplify right side
238,478.95x = 47,034,981,214.05 - Step 5: Solve for x
x = 47,034,981,214.05/238,478.95 - Step 6: Final answer
x = 197,229.07
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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.