Finding the Fourth Proportional to 221,952.47, 306,313.16 and 135,911.03
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Solution
The fourth proportional to 221,952.47, 306,313.16 and 135,911.03 is: 187,568.70
Step by Step Solution
- Step 1: Write the proportion equation
221,952.47 : 306,313.16 = 135,911.03 : x - Step 2: Convert to fraction form
221,952.47/306,313.16 = 135,911.03/x - Step 3: Cross multiply
221,952.47x = 306,313.16 × 135,911.03 - Step 4: Simplify right side
221,952.47x = 41,631,334,867.03 - Step 5: Solve for x
x = 41,631,334,867.03/221,952.47 - Step 6: Final answer
x = 187,568.70
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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.