Finding the Fourth Proportional to 316,365.99, 436,571.06 and 173,132.07
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Solution
The fourth proportional to 316,365.99, 436,571.06 and 173,132.07 is: 238,914.59
Step by Step Solution
- Step 1: Write the proportion equation
316,365.99 : 436,571.06 = 173,132.07 : x - Step 2: Convert to fraction form
316,365.99/436,571.06 = 173,132.07/x - Step 3: Cross multiply
316,365.99x = 436,571.06 × 173,132.07 - Step 4: Simplify right side
316,365.99x = 75,584,451,319.89 - Step 5: Solve for x
x = 75,584,451,319.89/316,365.99 - Step 6: Final answer
x = 238,914.59
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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.