Finding the Fourth Proportional to 307,110.06, 423,649.98 and 211,450.68
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Solution
The fourth proportional to 307,110.06, 423,649.98 and 211,450.68 is: 291,690.47
Step by Step Solution
- Step 1: Write the proportion equation
307,110.06 : 423,649.98 = 211,450.68 : x - Step 2: Convert to fraction form
307,110.06/423,649.98 = 211,450.68/x - Step 3: Cross multiply
307,110.06x = 423,649.98 × 211,450.68 - Step 4: Simplify right side
307,110.06x = 89,581,076,352.99 - Step 5: Solve for x
x = 89,581,076,352.99/307,110.06 - Step 6: Final answer
x = 291,690.47
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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.