Finding the Fourth Proportional to 288,696.38, 433,224.99 and 138,952.49
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Solution
The fourth proportional to 288,696.38, 433,224.99 and 138,952.49 is: 208,515.57
Step by Step Solution
- Step 1: Write the proportion equation
288,696.38 : 433,224.99 = 138,952.49 : x - Step 2: Convert to fraction form
288,696.38/433,224.99 = 138,952.49/x - Step 3: Cross multiply
288,696.38x = 433,224.99 × 138,952.49 - Step 4: Simplify right side
288,696.38x = 60,197,688,924.60 - Step 5: Solve for x
x = 60,197,688,924.60/288,696.38 - Step 6: Final answer
x = 208,515.57
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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.