Finding the Fourth Proportional to 438,440.10, 657,660.15 and 251,297.70
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Solution
The fourth proportional to 438,440.10, 657,660.15 and 251,297.70 is: 376,946.55
Step by Step Solution
- Step 1: Write the proportion equation
438,440.10 : 657,660.15 = 251,297.70 : x - Step 2: Convert to fraction form
438,440.10/657,660.15 = 251,297.70/x - Step 3: Cross multiply
438,440.10x = 657,660.15 × 251,297.70 - Step 4: Simplify right side
438,440.10x = 165,268,483,076.66 - Step 5: Solve for x
x = 165,268,483,076.66/438,440.10 - Step 6: Final answer
x = 376,946.55
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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.