Finding the Fourth Proportional to 380,294.88, 524,813.12 and 208,209.97
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Solution
The fourth proportional to 380,294.88, 524,813.12 and 208,209.97 is: 287,333.15
Step by Step Solution
- Step 1: Write the proportion equation
380,294.88 : 524,813.12 = 208,209.97 : x - Step 2: Convert to fraction form
380,294.88/524,813.12 = 208,209.97/x - Step 3: Cross multiply
380,294.88x = 524,813.12 × 208,209.97 - Step 4: Simplify right side
380,294.88x = 109,271,323,970.81 - Step 5: Solve for x
x = 109,271,323,970.81/380,294.88 - Step 6: Final answer
x = 287,333.15
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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.