Finding the Fourth Proportional to 316,812.58, 437,201.70 and 171,618.70
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Solution
The fourth proportional to 316,812.58, 437,201.70 and 171,618.70 is: 236,833.99
Step by Step Solution
- Step 1: Write the proportion equation
316,812.58 : 437,201.70 = 171,618.70 : x - Step 2: Convert to fraction form
316,812.58/437,201.70 = 171,618.70/x - Step 3: Cross multiply
316,812.58x = 437,201.70 × 171,618.70 - Step 4: Simplify right side
316,812.58x = 75,031,987,391.79 - Step 5: Solve for x
x = 75,031,987,391.79/316,812.58 - Step 6: Final answer
x = 236,833.99
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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.