Finding the Fourth Proportional to 319,874.18, 479,811.88 and 83,216.48
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Solution
The fourth proportional to 319,874.18, 479,811.88 and 83,216.48 is: 124,824.88
Step by Step Solution
- Step 1: Write the proportion equation
319,874.18 : 479,811.88 = 83,216.48 : x - Step 2: Convert to fraction form
319,874.18/479,811.88 = 83,216.48/x - Step 3: Cross multiply
319,874.18x = 479,811.88 × 83,216.48 - Step 4: Simplify right side
319,874.18x = 39,928,255,715.78 - Step 5: Solve for x
x = 39,928,255,715.78/319,874.18 - Step 6: Final answer
x = 124,824.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.