Finding the Fourth Proportional to 274,195.20, 411,292.80 and 163,603.20
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Solution
The fourth proportional to 274,195.20, 411,292.80 and 163,603.20 is: 245,404.80
Step by Step Solution
- Step 1: Write the proportion equation
274,195.20 : 411,292.80 = 163,603.20 : x - Step 2: Convert to fraction form
274,195.20/411,292.80 = 163,603.20/x - Step 3: Cross multiply
274,195.20x = 411,292.80 × 163,603.20 - Step 4: Simplify right side
274,195.20x = 67,288,818,216.96 - Step 5: Solve for x
x = 67,288,818,216.96/274,195.20 - Step 6: Final answer
x = 245,404.80
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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.