Finding the Fourth Proportional to 368,762.70, 515,086.80 and 368,762.70
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Solution
The fourth proportional to 368,762.70, 515,086.80 and 368,762.70 is: 515,086.80
Step by Step Solution
- Step 1: Write the proportion equation
368,762.70 : 515,086.80 = 368,762.70 : x - Step 2: Convert to fraction form
368,762.70/515,086.80 = 368,762.70/x - Step 3: Cross multiply
368,762.70x = 515,086.80 × 368,762.70 - Step 4: Simplify right side
368,762.70x = 189,944,799,102.36 - Step 5: Solve for x
x = 189,944,799,102.36/368,762.70 - Step 6: Final answer
x = 515,086.80
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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.