Finding the Fourth Proportional to 408,521.88, 563,720.65 and 236,405.68
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Solution
The fourth proportional to 408,521.88, 563,720.65 and 236,405.68 is: 326,216.95
Step by Step Solution
- Step 1: Write the proportion equation
408,521.88 : 563,720.65 = 236,405.68 : x - Step 2: Convert to fraction form
408,521.88/563,720.65 = 236,405.68/x - Step 3: Cross multiply
408,521.88x = 563,720.65 × 236,405.68 - Step 4: Simplify right side
408,521.88x = 133,266,761,592.98 - Step 5: Solve for x
x = 133,266,761,592.98/408,521.88 - Step 6: Final answer
x = 326,216.95
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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.