Finding the Fourth Proportional to 288,576.06, 432,864.09 and 78,214.00
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Solution
The fourth proportional to 288,576.06, 432,864.09 and 78,214.00 is: 117,320.99
Step by Step Solution
- Step 1: Write the proportion equation
288,576.06 : 432,864.09 = 78,214.00 : x - Step 2: Convert to fraction form
288,576.06/432,864.09 = 78,214.00/x - Step 3: Cross multiply
288,576.06x = 432,864.09 × 78,214.00 - Step 4: Simplify right side
288,576.06x = 33,856,029,770.94 - Step 5: Solve for x
x = 33,856,029,770.94/288,576.06 - Step 6: Final answer
x = 117,320.99
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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.