Finding the Fourth Proportional to 438,268.20, 604,811.06 and 247,281.75
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Solution
The fourth proportional to 438,268.20, 604,811.06 and 247,281.75 is: 341,249.34
Step by Step Solution
- Step 1: Write the proportion equation
438,268.20 : 604,811.06 = 247,281.75 : x - Step 2: Convert to fraction form
438,268.20/604,811.06 = 247,281.75/x - Step 3: Cross multiply
438,268.20x = 604,811.06 × 247,281.75 - Step 4: Simplify right side
438,268.20x = 149,558,736,099.75 - Step 5: Solve for x
x = 149,558,736,099.75/438,268.20 - Step 6: Final answer
x = 341,249.34
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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.