Finding the Fourth Proportional to 317,228.09, 437,778.14 and 172,034.15
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Solution
The fourth proportional to 317,228.09, 437,778.14 and 172,034.15 is: 237,408.95
Step by Step Solution
- Step 1: Write the proportion equation
317,228.09 : 437,778.14 = 172,034.15 : x - Step 2: Convert to fraction form
317,228.09/437,778.14 = 172,034.15/x - Step 3: Cross multiply
317,228.09x = 437,778.14 × 172,034.15 - Step 4: Simplify right side
317,228.09x = 75,312,787,154.42 - Step 5: Solve for x
x = 75,312,787,154.42/317,228.09 - Step 6: Final answer
x = 237,408.95
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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.