Finding the Fourth Proportional to 315,364.80, 473,176.80 and 115,780.80
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Solution
The fourth proportional to 315,364.80, 473,176.80 and 115,780.80 is: 173,718.78
Step by Step Solution
- Step 1: Write the proportion equation
315,364.80 : 473,176.80 = 115,780.80 : x - Step 2: Convert to fraction form
315,364.80/473,176.80 = 115,780.80/x - Step 3: Cross multiply
315,364.80x = 473,176.80 × 115,780.80 - Step 4: Simplify right side
315,364.80x = 54,784,788,445.44 - Step 5: Solve for x
x = 54,784,788,445.44/315,364.80 - Step 6: Final answer
x = 173,718.78
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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.