Finding the Fourth Proportional to 317,658.68, 438,365.88 and 174,417.44
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Solution
The fourth proportional to 317,658.68, 438,365.88 and 174,417.44 is: 240,694.37
Step by Step Solution
- Step 1: Write the proportion equation
317,658.68 : 438,365.88 = 174,417.44 : x - Step 2: Convert to fraction form
317,658.68/438,365.88 = 174,417.44/x - Step 3: Cross multiply
317,658.68x = 438,365.88 × 174,417.44 - Step 4: Simplify right side
317,658.68x = 76,458,654,572.95 - Step 5: Solve for x
x = 76,458,654,572.95/317,658.68 - Step 6: Final answer
x = 240,694.37
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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.