Finding the Fourth Proportional to 457,688.26, 631,647.06 and 253,803.08
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Solution
The fourth proportional to 457,688.26, 631,647.06 and 253,803.08 is: 350,268.91
Step by Step Solution
- Step 1: Write the proportion equation
457,688.26 : 631,647.06 = 253,803.08 : x - Step 2: Convert to fraction form
457,688.26/631,647.06 = 253,803.08/x - Step 3: Cross multiply
457,688.26x = 631,647.06 × 253,803.08 - Step 4: Simplify right side
457,688.26x = 160,313,969,300.95 - Step 5: Solve for x
x = 160,313,969,300.95/457,688.26 - Step 6: Final answer
x = 350,268.91
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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.