Finding the Fourth Proportional to 621,296.49, 932,140.35 and 221,928.42
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Solution
The fourth proportional to 621,296.49, 932,140.35 and 221,928.42 is: 332,962.50
Step by Step Solution
- Step 1: Write the proportion equation
621,296.49 : 932,140.35 = 221,928.42 : x - Step 2: Convert to fraction form
621,296.49/932,140.35 = 221,928.42/x - Step 3: Cross multiply
621,296.49x = 932,140.35 × 221,928.42 - Step 4: Simplify right side
621,296.49x = 206,868,435,093.75 - Step 5: Solve for x
x = 206,868,435,093.75/621,296.49 - Step 6: Final answer
x = 332,962.50
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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.