Finding the Fourth Proportional to 310,847.70, 466,271.55 and 284,927.70
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Solution
The fourth proportional to 310,847.70, 466,271.55 and 284,927.70 is: 427,391.55
Step by Step Solution
- Step 1: Write the proportion equation
310,847.70 : 466,271.55 = 284,927.70 : x - Step 2: Convert to fraction form
310,847.70/466,271.55 = 284,927.70/x - Step 3: Cross multiply
310,847.70x = 466,271.55 × 284,927.70 - Step 4: Simplify right side
310,847.70x = 132,853,680,316.94 - Step 5: Solve for x
x = 132,853,680,316.94/310,847.70 - Step 6: Final answer
x = 427,391.55
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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.