Finding the Fourth Proportional to 438,122.64, 604,604.88 and 247,198.08
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Solution
The fourth proportional to 438,122.64, 604,604.88 and 247,198.08 is: 341,130.89
Step by Step Solution
- Step 1: Write the proportion equation
438,122.64 : 604,604.88 = 247,198.08 : x - Step 2: Convert to fraction form
438,122.64/604,604.88 = 247,198.08/x - Step 3: Cross multiply
438,122.64x = 604,604.88 × 247,198.08 - Step 4: Simplify right side
438,122.64x = 149,457,165,494.63 - Step 5: Solve for x
x = 149,457,165,494.63/438,122.64 - Step 6: Final answer
x = 341,130.89
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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.