Finding the Fourth Proportional to 347,018.12, 478,886.29 and 201,858.74
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Solution
The fourth proportional to 347,018.12, 478,886.29 and 201,858.74 is: 278,565.80
Step by Step Solution
- Step 1: Write the proportion equation
347,018.12 : 478,886.29 = 201,858.74 : x - Step 2: Convert to fraction form
347,018.12/478,886.29 = 201,858.74/x - Step 3: Cross multiply
347,018.12x = 478,886.29 × 201,858.74 - Step 4: Simplify right side
347,018.12x = 96,667,380,203.60 - Step 5: Solve for x
x = 96,667,380,203.60/347,018.12 - Step 6: Final answer
x = 278,565.80
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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.