Finding the Fourth Proportional to 378,564.84, 522,415.98 and 208,800.18
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Solution
The fourth proportional to 378,564.84, 522,415.98 and 208,800.18 is: 288,142.32
Step by Step Solution
- Step 1: Write the proportion equation
378,564.84 : 522,415.98 = 208,800.18 : x - Step 2: Convert to fraction form
378,564.84/522,415.98 = 208,800.18/x - Step 3: Cross multiply
378,564.84x = 522,415.98 × 208,800.18 - Step 4: Simplify right side
378,564.84x = 109,080,550,658.88 - Step 5: Solve for x
x = 109,080,550,658.88/378,564.84 - Step 6: Final answer
x = 288,142.32
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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.