Finding the Fourth Proportional to 221,999.23, 306,352.71 and 121,395.07
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Solution
The fourth proportional to 221,999.23, 306,352.71 and 121,395.07 is: 167,521.79
Step by Step Solution
- Step 1: Write the proportion equation
221,999.23 : 306,352.71 = 121,395.07 : x - Step 2: Convert to fraction form
221,999.23/306,352.71 = 121,395.07/x - Step 3: Cross multiply
221,999.23x = 306,352.71 × 121,395.07 - Step 4: Simplify right side
221,999.23x = 37,189,708,675.14 - Step 5: Solve for x
x = 37,189,708,675.14/221,999.23 - Step 6: Final answer
x = 167,521.79
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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.