Finding the Fourth Proportional to 470,136.68, 648,697.38 and 279,209.96
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Solution
The fourth proportional to 470,136.68, 648,697.38 and 279,209.96 is: 385,255.56
Step by Step Solution
- Step 1: Write the proportion equation
470,136.68 : 648,697.38 = 279,209.96 : x - Step 2: Convert to fraction form
470,136.68/648,697.38 = 279,209.96/x - Step 3: Cross multiply
470,136.68x = 648,697.38 × 279,209.96 - Step 4: Simplify right side
470,136.68x = 181,122,769,521.91 - Step 5: Solve for x
x = 181,122,769,521.91/470,136.68 - Step 6: Final answer
x = 385,255.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.