Finding the Fourth Proportional to 408,487.10, 563,643.40 and 227,175.08
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Solution
The fourth proportional to 408,487.10, 563,643.40 and 227,175.08 is: 313,463.35
Step by Step Solution
- Step 1: Write the proportion equation
408,487.10 : 563,643.40 = 227,175.08 : x - Step 2: Convert to fraction form
408,487.10/563,643.40 = 227,175.08/x - Step 3: Cross multiply
408,487.10x = 563,643.40 × 227,175.08 - Step 4: Simplify right side
408,487.10x = 128,045,733,077.36 - Step 5: Solve for x
x = 128,045,733,077.36/408,487.10 - Step 6: Final answer
x = 313,463.35
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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.