Finding the Fourth Proportional to 198,931.14, 274,582.95 and 130,030.62
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Solution
The fourth proportional to 198,931.14, 274,582.95 and 130,030.62 is: 179,480.14
Step by Step Solution
- Step 1: Write the proportion equation
198,931.14 : 274,582.95 = 130,030.62 : x - Step 2: Convert to fraction form
198,931.14/274,582.95 = 130,030.62/x - Step 3: Cross multiply
198,931.14x = 274,582.95 × 130,030.62 - Step 4: Simplify right side
198,931.14x = 35,704,189,712.63 - Step 5: Solve for x
x = 35,704,189,712.63/198,931.14 - Step 6: Final answer
x = 179,480.14
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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.