Finding the Fourth Proportional to 203,214.41, 280,378.76 and 121,532.79
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Solution
The fourth proportional to 203,214.41, 280,378.76 and 121,532.79 is: 167,681.09
Step by Step Solution
- Step 1: Write the proportion equation
203,214.41 : 280,378.76 = 121,532.79 : x - Step 2: Convert to fraction form
203,214.41/280,378.76 = 121,532.79/x - Step 3: Cross multiply
203,214.41x = 280,378.76 × 121,532.79 - Step 4: Simplify right side
203,214.41x = 34,075,212,351.88 - Step 5: Solve for x
x = 34,075,212,351.88/203,214.41 - Step 6: Final answer
x = 167,681.09
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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.