Finding the Fourth Proportional to 381,916.68, 527,030.28 and 212,161.56
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Solution
The fourth proportional to 381,916.68, 527,030.28 and 212,161.56 is: 292,774.77
Step by Step Solution
- Step 1: Write the proportion equation
381,916.68 : 527,030.28 = 212,161.56 : x - Step 2: Convert to fraction form
381,916.68/527,030.28 = 212,161.56/x - Step 3: Cross multiply
381,916.68x = 527,030.28 × 212,161.56 - Step 4: Simplify right side
381,916.68x = 111,815,566,372.04 - Step 5: Solve for x
x = 111,815,566,372.04/381,916.68 - Step 6: Final answer
x = 292,774.77
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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.