Finding the Fourth Proportional to 221,955.94, 332,900.97 and 81,681.76
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Solution
The fourth proportional to 221,955.94, 332,900.97 and 81,681.76 is: 122,510.52
Step by Step Solution
- Step 1: Write the proportion equation
221,955.94 : 332,900.97 = 81,681.76 : x - Step 2: Convert to fraction form
221,955.94/332,900.97 = 81,681.76/x - Step 3: Cross multiply
221,955.94x = 332,900.97 × 81,681.76 - Step 4: Simplify right side
221,955.94x = 27,191,937,135.31 - Step 5: Solve for x
x = 27,191,937,135.31/221,955.94 - Step 6: Final answer
x = 122,510.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.