Finding the Fourth Proportional to 317,676.06, 438,400.62 and 172,488.02
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Solution
The fourth proportional to 317,676.06, 438,400.62 and 172,488.02 is: 238,037.62
Step by Step Solution
- Step 1: Write the proportion equation
317,676.06 : 438,400.62 = 172,488.02 : x - Step 2: Convert to fraction form
317,676.06/438,400.62 = 172,488.02/x - Step 3: Cross multiply
317,676.06x = 438,400.62 × 172,488.02 - Step 4: Simplify right side
317,676.06x = 75,618,852,718.57 - Step 5: Solve for x
x = 75,618,852,718.57/317,676.06 - Step 6: Final answer
x = 238,037.62
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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.