Finding the Fourth Proportional to 324,062.20, 486,611.70 and 219,345.40
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Solution
The fourth proportional to 324,062.20, 486,611.70 and 219,345.40 is: 329,368.99
Step by Step Solution
- Step 1: Write the proportion equation
324,062.20 : 486,611.70 = 219,345.40 : x - Step 2: Convert to fraction form
324,062.20/486,611.70 = 219,345.40/x - Step 3: Cross multiply
324,062.20x = 486,611.70 × 219,345.40 - Step 4: Simplify right side
324,062.20x = 106,736,037,981.18 - Step 5: Solve for x
x = 106,736,037,981.18/324,062.20 - Step 6: Final answer
x = 329,368.99
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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.