Finding the Fourth Proportional to 201,439.36, 278,034.85 and 115,448.74
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Solution
The fourth proportional to 201,439.36, 278,034.85 and 115,448.74 is: 159,347.08
Step by Step Solution
- Step 1: Write the proportion equation
201,439.36 : 278,034.85 = 115,448.74 : x - Step 2: Convert to fraction form
201,439.36/278,034.85 = 115,448.74/x - Step 3: Cross multiply
201,439.36x = 278,034.85 × 115,448.74 - Step 4: Simplify right side
201,439.36x = 32,098,772,836.16 - Step 5: Solve for x
x = 32,098,772,836.16/201,439.36 - Step 6: Final answer
x = 159,347.08
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1.5x scale
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.