Finding the Fourth Proportional to 381,903.43, 527,011.99 and 212,148.31
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Solution
The fourth proportional to 381,903.43, 527,011.99 and 212,148.31 is: 292,756.48
Step by Step Solution
- Step 1: Write the proportion equation
381,903.43 : 527,011.99 = 212,148.31 : x - Step 2: Convert to fraction form
381,903.43/527,011.99 = 212,148.31/x - Step 3: Cross multiply
381,903.43x = 527,011.99 × 212,148.31 - Step 4: Simplify right side
381,903.43x = 111,804,703,028.24 - Step 5: Solve for x
x = 111,804,703,028.24/381,903.43 - Step 6: Final answer
x = 292,756.48
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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.