Finding the Fourth Proportional to 149,246.20, 223,869.30 and 139,331.80
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Solution
The fourth proportional to 149,246.20, 223,869.30 and 139,331.80 is: 208,997.70
Step by Step Solution
- Step 1: Write the proportion equation
149,246.20 : 223,869.30 = 139,331.80 : x - Step 2: Convert to fraction form
149,246.20/223,869.30 = 139,331.80/x - Step 3: Cross multiply
149,246.20x = 223,869.30 × 139,331.80 - Step 4: Simplify right side
149,246.20x = 31,192,112,533.74 - Step 5: Solve for x
x = 31,192,112,533.74/149,246.20 - Step 6: Final answer
x = 208,997.70
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1.5x scale
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.