Finding the Fourth Proportional to 316,911.60, 437,341.44 and 173,668.56
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Solution
The fourth proportional to 316,911.60, 437,341.44 and 173,668.56 is: 239,664.49
Step by Step Solution
- Step 1: Write the proportion equation
316,911.60 : 437,341.44 = 173,668.56 : x - Step 2: Convert to fraction form
316,911.60/437,341.44 = 173,668.56/x - Step 3: Cross multiply
316,911.60x = 437,341.44 × 173,668.56 - Step 4: Simplify right side
316,911.60x = 75,952,458,113.13 - Step 5: Solve for x
x = 75,952,458,113.13/316,911.60 - Step 6: Final answer
x = 239,664.49
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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.