Finding the Fourth Proportional to 363,781.80, 545,672.70 and 310,637.70
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Solution
The fourth proportional to 363,781.80, 545,672.70 and 310,637.70 is: 465,956.55
Step by Step Solution
- Step 1: Write the proportion equation
363,781.80 : 545,672.70 = 310,637.70 : x - Step 2: Convert to fraction form
363,781.80/545,672.70 = 310,637.70/x - Step 3: Cross multiply
363,781.80x = 545,672.70 × 310,637.70 - Step 4: Simplify right side
363,781.80x = 169,506,512,480.79 - Step 5: Solve for x
x = 169,506,512,480.79/363,781.80 - Step 6: Final answer
x = 465,956.55
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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.