Finding the Fourth Proportional to 389,273.67, 537,197.76 and 219,507.84
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Solution
The fourth proportional to 389,273.67, 537,197.76 and 219,507.84 is: 302,920.87
Step by Step Solution
- Step 1: Write the proportion equation
389,273.67 : 537,197.76 = 219,507.84 : x - Step 2: Convert to fraction form
389,273.67/537,197.76 = 219,507.84/x - Step 3: Cross multiply
389,273.67x = 537,197.76 × 219,507.84 - Step 4: Simplify right side
389,273.67x = 117,919,119,950.44 - Step 5: Solve for x
x = 117,919,119,950.44/389,273.67 - Step 6: Final answer
x = 302,920.87
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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.