Finding the Fourth Proportional to 451,307.21, 622,810.76 and 247,356.50
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Solution
The fourth proportional to 451,307.21, 622,810.76 and 247,356.50 is: 341,355.70
Step by Step Solution
- Step 1: Write the proportion equation
451,307.21 : 622,810.76 = 247,356.50 : x - Step 2: Convert to fraction form
451,307.21/622,810.76 = 247,356.50/x - Step 3: Cross multiply
451,307.21x = 622,810.76 × 247,356.50 - Step 4: Simplify right side
451,307.21x = 154,056,285,405.10 - Step 5: Solve for x
x = 154,056,285,405.10/451,307.21 - Step 6: Final answer
x = 341,355.70
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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.