Finding the Fourth Proportional to 211,017.84, 291,227.88 and 134,539.68
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Solution
The fourth proportional to 211,017.84, 291,227.88 and 134,539.68 is: 185,679.59
Step by Step Solution
- Step 1: Write the proportion equation
211,017.84 : 291,227.88 = 134,539.68 : x - Step 2: Convert to fraction form
211,017.84/291,227.88 = 134,539.68/x - Step 3: Cross multiply
211,017.84x = 291,227.88 × 134,539.68 - Step 4: Simplify right side
211,017.84x = 39,181,705,782.28 - Step 5: Solve for x
x = 39,181,705,782.28/211,017.84 - Step 6: Final answer
x = 185,679.59
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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.