Finding the Fourth Proportional to 149,611.80, 224,417.70 and 70,879.80
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Solution
The fourth proportional to 149,611.80, 224,417.70 and 70,879.80 is: 106,319.70
Step by Step Solution
- Step 1: Write the proportion equation
149,611.80 : 224,417.70 = 70,879.80 : x - Step 2: Convert to fraction form
149,611.80/224,417.70 = 70,879.80/x - Step 3: Cross multiply
149,611.80x = 224,417.70 × 70,879.80 - Step 4: Simplify right side
149,611.80x = 15,906,681,692.46 - Step 5: Solve for x
x = 15,906,681,692.46/149,611.80 - Step 6: Final answer
x = 106,319.70
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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.