Finding the Fourth Proportional to 288,898.68, 433,450.66 and 128,960.12
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Solution
The fourth proportional to 288,898.68, 433,450.66 and 128,960.12 is: 193,486.00
Step by Step Solution
- Step 1: Write the proportion equation
288,898.68 : 433,450.66 = 128,960.12 : x - Step 2: Convert to fraction form
288,898.68/433,450.66 = 128,960.12/x - Step 3: Cross multiply
288,898.68x = 433,450.66 × 128,960.12 - Step 4: Simplify right side
288,898.68x = 55,897,849,127.68 - Step 5: Solve for x
x = 55,897,849,127.68/288,898.68 - Step 6: Final answer
x = 193,486.00
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1.5x scale
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.