Finding the Fourth Proportional to 201,964.01, 278,710.35 and 117,130.28
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Solution
The fourth proportional to 201,964.01, 278,710.35 and 117,130.28 is: 161,639.80
Step by Step Solution
- Step 1: Write the proportion equation
201,964.01 : 278,710.35 = 117,130.28 : x - Step 2: Convert to fraction form
201,964.01/278,710.35 = 117,130.28/x - Step 3: Cross multiply
201,964.01x = 278,710.35 × 117,130.28 - Step 4: Simplify right side
201,964.01x = 32,645,421,334.40 - Step 5: Solve for x
x = 32,645,421,334.40/201,964.01 - Step 6: Final answer
x = 161,639.80
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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.