Finding the Fourth Proportional to 383,145.09, 528,700.45 and 235,946.55
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Solution
The fourth proportional to 383,145.09, 528,700.45 and 235,946.55 is: 325,581.75
Step by Step Solution
- Step 1: Write the proportion equation
383,145.09 : 528,700.45 = 235,946.55 : x - Step 2: Convert to fraction form
383,145.09/528,700.45 = 235,946.55/x - Step 3: Cross multiply
383,145.09x = 528,700.45 × 235,946.55 - Step 4: Simplify right side
383,145.09x = 124,745,047,160.95 - Step 5: Solve for x
x = 124,745,047,160.95/383,145.09 - Step 6: Final answer
x = 325,581.75
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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.