Finding the Fourth Proportional to 283,904.49, 391,811.73 and 163,069.08
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Solution
The fourth proportional to 283,904.49, 391,811.73 and 163,069.08 is: 225,048.85
Step by Step Solution
- Step 1: Write the proportion equation
283,904.49 : 391,811.73 = 163,069.08 : x - Step 2: Convert to fraction form
283,904.49/391,811.73 = 163,069.08/x - Step 3: Cross multiply
283,904.49x = 391,811.73 × 163,069.08 - Step 4: Simplify right side
283,904.49x = 63,892,378,344.31 - Step 5: Solve for x
x = 63,892,378,344.31/283,904.49 - Step 6: Final answer
x = 225,048.85
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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.