Finding the Fourth Proportional to 381,713.70, 572,570.55 and 97,403.70
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Solution
The fourth proportional to 381,713.70, 572,570.55 and 97,403.70 is: 146,105.55
Step by Step Solution
- Step 1: Write the proportion equation
381,713.70 : 572,570.55 = 97,403.70 : x - Step 2: Convert to fraction form
381,713.70/572,570.55 = 97,403.70/x - Step 3: Cross multiply
381,713.70x = 572,570.55 × 97,403.70 - Step 4: Simplify right side
381,713.70x = 55,770,490,081.04 - Step 5: Solve for x
x = 55,770,490,081.04/381,713.70 - Step 6: Final answer
x = 146,105.55
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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.