Finding the Fourth Proportional to 328,677.21, 453,574.58 and 177,774.21
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Solution
The fourth proportional to 328,677.21, 453,574.58 and 177,774.21 is: 245,328.42
Step by Step Solution
- Step 1: Write the proportion equation
328,677.21 : 453,574.58 = 177,774.21 : x - Step 2: Convert to fraction form
328,677.21/453,574.58 = 177,774.21/x - Step 3: Cross multiply
328,677.21x = 453,574.58 × 177,774.21 - Step 4: Simplify right side
328,677.21x = 80,633,861,746.71 - Step 5: Solve for x
x = 80,633,861,746.71/328,677.21 - Step 6: Final answer
x = 245,328.42
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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.