Finding the Fourth Proportional to 317,813.92, 438,223.80 and 202,941.52
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Solution
The fourth proportional to 317,813.92, 438,223.80 and 202,941.52 is: 279,829.79
Step by Step Solution
- Step 1: Write the proportion equation
317,813.92 : 438,223.80 = 202,941.52 : x - Step 2: Convert to fraction form
317,813.92/438,223.80 = 202,941.52/x - Step 3: Cross multiply
317,813.92x = 438,223.80 × 202,941.52 - Step 4: Simplify right side
317,813.92x = 88,933,804,072.18 - Step 5: Solve for x
x = 88,933,804,072.18/317,813.92 - Step 6: Final answer
x = 279,829.79
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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.