Finding the Fourth Proportional to 312,318.57, 468,664.50 and 286,909.05
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Solution
The fourth proportional to 312,318.57, 468,664.50 and 286,909.05 is: 430,535.03
Step by Step Solution
- Step 1: Write the proportion equation
312,318.57 : 468,664.50 = 286,909.05 : x - Step 2: Convert to fraction form
312,318.57/468,664.50 = 286,909.05/x - Step 3: Cross multiply
312,318.57x = 468,664.50 × 286,909.05 - Step 4: Simplify right side
312,318.57x = 134,464,086,463.73 - Step 5: Solve for x
x = 134,464,086,463.73/312,318.57 - Step 6: Final answer
x = 430,535.03
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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.