Finding the Fourth Proportional to 352,136.20, 528,204.30 and 115,421.80
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Solution
The fourth proportional to 352,136.20, 528,204.30 and 115,421.80 is: 173,132.70
Step by Step Solution
- Step 1: Write the proportion equation
352,136.20 : 528,204.30 = 115,421.80 : x - Step 2: Convert to fraction form
352,136.20/528,204.30 = 115,421.80/x - Step 3: Cross multiply
352,136.20x = 528,204.30 × 115,421.80 - Step 4: Simplify right side
352,136.20x = 60,966,291,073.74 - Step 5: Solve for x
x = 60,966,291,073.74/352,136.20 - Step 6: Final answer
x = 173,132.70
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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.