Finding the Fourth Proportional to 315,010.80, 472,516.20 and 115,337.70
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Solution
The fourth proportional to 315,010.80, 472,516.20 and 115,337.70 is: 173,006.55
Step by Step Solution
- Step 1: Write the proportion equation
315,010.80 : 472,516.20 = 115,337.70 : x - Step 2: Convert to fraction form
315,010.80/472,516.20 = 115,337.70/x - Step 3: Cross multiply
315,010.80x = 472,516.20 × 115,337.70 - Step 4: Simplify right side
315,010.80x = 54,498,931,720.74 - Step 5: Solve for x
x = 54,498,931,720.74/315,010.80 - Step 6: Final answer
x = 173,006.55
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1.5x scale
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.