Finding the Fourth Proportional to 378,959.02, 522,962.94 and 209,192.74
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Solution
The fourth proportional to 378,959.02, 522,962.94 and 209,192.74 is: 288,685.70
Step by Step Solution
- Step 1: Write the proportion equation
378,959.02 : 522,962.94 = 209,192.74 : x - Step 2: Convert to fraction form
378,959.02/522,962.94 = 209,192.74/x - Step 3: Cross multiply
378,959.02x = 522,962.94 × 209,192.74 - Step 4: Simplify right side
378,959.02x = 109,400,050,337.06 - Step 5: Solve for x
x = 109,400,050,337.06/378,959.02 - Step 6: Final answer
x = 288,685.70
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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.