Finding the Fourth Proportional to 209,762.74, 314,689.68 and 76,642.79
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Solution
The fourth proportional to 209,762.74, 314,689.68 and 76,642.79 is: 114,980.84
Step by Step Solution
- Step 1: Write the proportion equation
209,762.74 : 314,689.68 = 76,642.79 : x - Step 2: Convert to fraction form
209,762.74/314,689.68 = 76,642.79/x - Step 3: Cross multiply
209,762.74x = 314,689.68 × 76,642.79 - Step 4: Simplify right side
209,762.74x = 24,118,695,846.13 - Step 5: Solve for x
x = 24,118,695,846.13/209,762.74 - Step 6: Final answer
x = 114,980.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.