Finding the Fourth Proportional to 278,447.07, 416,964.11 and 233,349.84
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Solution
The fourth proportional to 278,447.07, 416,964.11 and 233,349.84 is: 349,432.68
Step by Step Solution
- Step 1: Write the proportion equation
278,447.07 : 416,964.11 = 233,349.84 : x - Step 2: Convert to fraction form
278,447.07/416,964.11 = 233,349.84/x - Step 3: Cross multiply
278,447.07x = 416,964.11 × 233,349.84 - Step 4: Simplify right side
278,447.07x = 97,298,507,187.49 - Step 5: Solve for x
x = 97,298,507,187.49/278,447.07 - Step 6: Final answer
x = 349,432.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.