Finding the Fourth Proportional to 315,319.80, 472,979.70 and 93,703.80
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Solution
The fourth proportional to 315,319.80, 472,979.70 and 93,703.80 is: 140,555.70
Step by Step Solution
- Step 1: Write the proportion equation
315,319.80 : 472,979.70 = 93,703.80 : x - Step 2: Convert to fraction form
315,319.80/472,979.70 = 93,703.80/x - Step 3: Cross multiply
315,319.80x = 472,979.70 × 93,703.80 - Step 4: Simplify right side
315,319.80x = 44,319,995,212.86 - Step 5: Solve for x
x = 44,319,995,212.86/315,319.80 - Step 6: Final answer
x = 140,555.70
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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.