Finding the Fourth Proportional to 374,073.84, 515,936.16 and 238,129.92
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Solution
The fourth proportional to 374,073.84, 515,936.16 and 238,129.92 is: 328,437.39
Step by Step Solution
- Step 1: Write the proportion equation
374,073.84 : 515,936.16 = 238,129.92 : x - Step 2: Convert to fraction form
374,073.84/515,936.16 = 238,129.92/x - Step 3: Cross multiply
374,073.84x = 515,936.16 × 238,129.92 - Step 4: Simplify right side
374,073.84x = 122,859,836,505.91 - Step 5: Solve for x
x = 122,859,836,505.91/374,073.84 - Step 6: Final answer
x = 328,437.39
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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.