Finding the Fourth Proportional to 348,877.80, 523,316.70 and 328,141.80
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Solution
The fourth proportional to 348,877.80, 523,316.70 and 328,141.80 is: 492,212.70
Step by Step Solution
- Step 1: Write the proportion equation
348,877.80 : 523,316.70 = 328,141.80 : x - Step 2: Convert to fraction form
348,877.80/523,316.70 = 328,141.80/x - Step 3: Cross multiply
348,877.80x = 523,316.70 × 328,141.80 - Step 4: Simplify right side
348,877.80x = 171,722,083,908.06 - Step 5: Solve for x
x = 171,722,083,908.06/348,877.80 - Step 6: Final answer
x = 492,212.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.