Finding the Fourth Proportional to 211,253.84, 291,530.30 and 121,829.84
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Solution
The fourth proportional to 211,253.84, 291,530.30 and 121,829.84 is: 168,125.18
Step by Step Solution
- Step 1: Write the proportion equation
211,253.84 : 291,530.30 = 121,829.84 : x - Step 2: Convert to fraction form
211,253.84/291,530.30 = 121,829.84/x - Step 3: Cross multiply
211,253.84x = 291,530.30 × 121,829.84 - Step 4: Simplify right side
211,253.84x = 35,517,089,804.15 - Step 5: Solve for x
x = 35,517,089,804.15/211,253.84 - Step 6: Final answer
x = 168,125.18
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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.