Finding the Fourth Proportional to 317,309.58, 476,088.99 and 139,691.97
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Solution
The fourth proportional to 317,309.58, 476,088.99 and 139,691.97 is: 209,592.82
Step by Step Solution
- Step 1: Write the proportion equation
317,309.58 : 476,088.99 = 139,691.97 : x - Step 2: Convert to fraction form
317,309.58/476,088.99 = 139,691.97/x - Step 3: Cross multiply
317,309.58x = 476,088.99 × 139,691.97 - Step 4: Simplify right side
317,309.58x = 66,505,808,908.41 - Step 5: Solve for x
x = 66,505,808,908.41/317,309.58 - Step 6: Final answer
x = 209,592.82
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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.