Finding the Fourth Proportional to 317,813.12, 438,475.07 and 179,973.19
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Solution
The fourth proportional to 317,813.12, 438,475.07 and 179,973.19 is: 248,302.39
Step by Step Solution
- Step 1: Write the proportion equation
317,813.12 : 438,475.07 = 179,973.19 : x - Step 2: Convert to fraction form
317,813.12/438,475.07 = 179,973.19/x - Step 3: Cross multiply
317,813.12x = 438,475.07 × 179,973.19 - Step 4: Simplify right side
317,813.12x = 78,913,758,081.40 - Step 5: Solve for x
x = 78,913,758,081.40/317,813.12 - Step 6: Final answer
x = 248,302.39
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1.5x scale
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.