Finding the Fourth Proportional to 368,768.70, 515,095.20 and 368,768.70
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Solution
The fourth proportional to 368,768.70, 515,095.20 and 368,768.70 is: 515,095.20
Step by Step Solution
- Step 1: Write the proportion equation
368,768.70 : 515,095.20 = 368,768.70 : x - Step 2: Convert to fraction form
368,768.70/515,095.20 = 368,768.70/x - Step 3: Cross multiply
368,768.70x = 515,095.20 × 368,768.70 - Step 4: Simplify right side
368,768.70x = 189,950,987,280.24 - Step 5: Solve for x
x = 189,950,987,280.24/368,768.70 - Step 6: Final answer
x = 515,095.20
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.