Finding the Fourth Proportional to 211,012.84, 291,220.92 and 134,534.68
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Solution
The fourth proportional to 211,012.84, 291,220.92 and 134,534.68 is: 185,672.65
Step by Step Solution
- Step 1: Write the proportion equation
211,012.84 : 291,220.92 = 134,534.68 : x - Step 2: Convert to fraction form
211,012.84/291,220.92 = 134,534.68/x - Step 3: Cross multiply
211,012.84x = 291,220.92 × 134,534.68 - Step 4: Simplify right side
211,012.84x = 39,179,313,281.51 - Step 5: Solve for x
x = 39,179,313,281.51/211,012.84 - Step 6: Final answer
x = 185,672.65
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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.