Finding the Fourth Proportional to 317,815.26, 438,587.10 and 174,574.05
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Solution
The fourth proportional to 317,815.26, 438,587.10 and 174,574.05 is: 240,913.31
Step by Step Solution
- Step 1: Write the proportion equation
317,815.26 : 438,587.10 = 174,574.05 : x - Step 2: Convert to fraction form
317,815.26/438,587.10 = 174,574.05/x - Step 3: Cross multiply
317,815.26x = 438,587.10 × 174,574.05 - Step 4: Simplify right side
317,815.26x = 76,565,926,324.76 - Step 5: Solve for x
x = 76,565,926,324.76/317,815.26 - Step 6: Final answer
x = 240,913.31
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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.