Finding the Fourth Proportional to 408,375.77, 563,475.98 and 238,577.09
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Solution
The fourth proportional to 408,375.77, 563,475.98 and 238,577.09 is: 329,188.14
Step by Step Solution
- Step 1: Write the proportion equation
408,375.77 : 563,475.98 = 238,577.09 : x - Step 2: Convert to fraction form
408,375.77/563,475.98 = 238,577.09/x - Step 3: Cross multiply
408,375.77x = 563,475.98 × 238,577.09 - Step 4: Simplify right side
408,375.77x = 134,432,458,400.41 - Step 5: Solve for x
x = 134,432,458,400.41/408,375.77 - Step 6: Final answer
x = 329,188.14
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1.5x scale
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.