Finding the Fourth Proportional to 247,251.70, 370,855.95 and 81,039.70
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Solution
The fourth proportional to 247,251.70, 370,855.95 and 81,039.70 is: 121,552.47
Step by Step Solution
- Step 1: Write the proportion equation
247,251.70 : 370,855.95 = 81,039.70 : x - Step 2: Convert to fraction form
247,251.70/370,855.95 = 81,039.70/x - Step 3: Cross multiply
247,251.70x = 370,855.95 × 81,039.70 - Step 4: Simplify right side
247,251.70x = 30,054,054,931.22 - Step 5: Solve for x
x = 30,054,054,931.22/247,251.70 - Step 6: Final answer
x = 121,552.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.