Finding the Fourth Proportional to 145,228.40, 217,972.20 and 125,529.20
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Solution
The fourth proportional to 145,228.40, 217,972.20 and 125,529.20 is: 188,405.82
Step by Step Solution
- Step 1: Write the proportion equation
145,228.40 : 217,972.20 = 125,529.20 : x - Step 2: Convert to fraction form
145,228.40/217,972.20 = 125,529.20/x - Step 3: Cross multiply
145,228.40x = 217,972.20 × 125,529.20 - Step 4: Simplify right side
145,228.40x = 27,361,875,888.24 - Step 5: Solve for x
x = 27,361,875,888.24/145,228.40 - Step 6: Final answer
x = 188,405.82
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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.