Finding the Fourth Proportional to 210,682.67, 290,742.61 and 115,195.53
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Solution
The fourth proportional to 210,682.67, 290,742.61 and 115,195.53 is: 158,970.12
Step by Step Solution
- Step 1: Write the proportion equation
210,682.67 : 290,742.61 = 115,195.53 : x - Step 2: Convert to fraction form
210,682.67/290,742.61 = 115,195.53/x - Step 3: Cross multiply
210,682.67x = 290,742.61 × 115,195.53 - Step 4: Simplify right side
210,682.67x = 33,492,249,052.53 - Step 5: Solve for x
x = 33,492,249,052.53/210,682.67 - Step 6: Final answer
x = 158,970.12
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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.