Finding the Fourth Proportional to 380,217.68, 524,701.06 and 208,135.75
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Solution
The fourth proportional to 380,217.68, 524,701.06 and 208,135.75 is: 287,227.70
Step by Step Solution
- Step 1: Write the proportion equation
380,217.68 : 524,701.06 = 208,135.75 : x - Step 2: Convert to fraction form
380,217.68/524,701.06 = 208,135.75/x - Step 3: Cross multiply
380,217.68x = 524,701.06 × 208,135.75 - Step 4: Simplify right side
380,217.68x = 109,209,049,715.38 - Step 5: Solve for x
x = 109,209,049,715.38/380,217.68 - Step 6: Final answer
x = 287,227.70
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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.