Finding the Fourth Proportional to 464,116.81, 640,469.63 and 257,384.00
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Solution
The fourth proportional to 464,116.81, 640,469.63 and 257,384.00 is: 355,183.50
Step by Step Solution
- Step 1: Write the proportion equation
464,116.81 : 640,469.63 = 257,384.00 : x - Step 2: Convert to fraction form
464,116.81/640,469.63 = 257,384.00/x - Step 3: Cross multiply
464,116.81x = 640,469.63 × 257,384.00 - Step 4: Simplify right side
464,116.81x = 164,846,632,689.03 - Step 5: Solve for x
x = 164,846,632,689.03/464,116.81 - Step 6: Final answer
x = 355,183.50
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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.