Finding the Fourth Proportional to 381,281.99, 526,150.17 and 217,933.61
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Solution
The fourth proportional to 381,281.99, 526,150.17 and 217,933.61 is: 300,737.53
Step by Step Solution
- Step 1: Write the proportion equation
381,281.99 : 526,150.17 = 217,933.61 : x - Step 2: Convert to fraction form
381,281.99/526,150.17 = 217,933.61/x - Step 3: Cross multiply
381,281.99x = 526,150.17 × 217,933.61 - Step 4: Simplify right side
381,281.99x = 114,665,803,319.46 - Step 5: Solve for x
x = 114,665,803,319.46/381,281.99 - Step 6: Final answer
x = 300,737.53
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1.5x scale
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.