Finding the Fourth Proportional to 395,658.05, 545,946.41 and 234,487.08
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Solution
The fourth proportional to 395,658.05, 545,946.41 and 234,487.08 is: 323,555.61
Step by Step Solution
- Step 1: Write the proportion equation
395,658.05 : 545,946.41 = 234,487.08 : x - Step 2: Convert to fraction form
395,658.05/545,946.41 = 234,487.08/x - Step 3: Cross multiply
395,658.05x = 545,946.41 × 234,487.08 - Step 4: Simplify right side
395,658.05x = 128,017,380,103.60 - Step 5: Solve for x
x = 128,017,380,103.60/395,658.05 - Step 6: Final answer
x = 323,555.61
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1.5x scale
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.