Finding the Fourth Proportional to 217,075.84, 299,567.64 and 121,581.88
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Solution
The fourth proportional to 217,075.84, 299,567.64 and 121,581.88 is: 167,784.66
Step by Step Solution
- Step 1: Write the proportion equation
217,075.84 : 299,567.64 = 121,581.88 : x - Step 2: Convert to fraction form
217,075.84/299,567.64 = 121,581.88/x - Step 3: Cross multiply
217,075.84x = 299,567.64 × 121,581.88 - Step 4: Simplify right side
217,075.84x = 36,421,996,858.36 - Step 5: Solve for x
x = 36,421,996,858.36/217,075.84 - Step 6: Final answer
x = 167,784.66
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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.