Finding the Fourth Proportional to 288,583.20, 432,874.80 and 239,431.20
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Solution
The fourth proportional to 288,583.20, 432,874.80 and 239,431.20 is: 359,146.80
Step by Step Solution
- Step 1: Write the proportion equation
288,583.20 : 432,874.80 = 239,431.20 : x - Step 2: Convert to fraction form
288,583.20/432,874.80 = 239,431.20/x - Step 3: Cross multiply
288,583.20x = 432,874.80 × 239,431.20 - Step 4: Simplify right side
288,583.20x = 103,643,732,813.76 - Step 5: Solve for x
x = 103,643,732,813.76/288,583.20 - Step 6: Final answer
x = 359,146.80
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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.