Finding the Fourth Proportional to 352,758.30, 528,984.36 and 128,044.08
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Solution
The fourth proportional to 352,758.30, 528,984.36 and 128,044.08 is: 192,010.55
Step by Step Solution
- Step 1: Write the proportion equation
352,758.30 : 528,984.36 = 128,044.08 : x - Step 2: Convert to fraction form
352,758.30/528,984.36 = 128,044.08/x - Step 3: Cross multiply
352,758.30x = 528,984.36 × 128,044.08 - Step 4: Simplify right side
352,758.30x = 67,733,315,710.59 - Step 5: Solve for x
x = 67,733,315,710.59/352,758.30 - Step 6: Final answer
x = 192,010.55
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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.