Finding the Fourth Proportional to 315,177.40, 472,766.10 and 310,511.80
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Solution
The fourth proportional to 315,177.40, 472,766.10 and 310,511.80 is: 465,767.70
Step by Step Solution
- Step 1: Write the proportion equation
315,177.40 : 472,766.10 = 310,511.80 : x - Step 2: Convert to fraction form
315,177.40/472,766.10 = 310,511.80/x - Step 3: Cross multiply
315,177.40x = 472,766.10 × 310,511.80 - Step 4: Simplify right side
315,177.40x = 146,799,452,689.98 - Step 5: Solve for x
x = 146,799,452,689.98/315,177.40 - Step 6: Final answer
x = 465,767.70
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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.