Finding the Fourth Proportional to 317,909.71, 476,863.35 and 81,252.01
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Solution
The fourth proportional to 317,909.71, 476,863.35 and 81,252.01 is: 121,877.70
Step by Step Solution
- Step 1: Write the proportion equation
317,909.71 : 476,863.35 = 81,252.01 : x - Step 2: Convert to fraction form
317,909.71/476,863.35 = 81,252.01/x - Step 3: Cross multiply
317,909.71x = 476,863.35 × 81,252.01 - Step 4: Simplify right side
317,909.71x = 38,746,104,287.55 - Step 5: Solve for x
x = 38,746,104,287.55/317,909.71 - Step 6: Final answer
x = 121,877.70
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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.