Finding the Fourth Proportional to 621,695.20, 932,542.80 and 201,272.80
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Solution
The fourth proportional to 621,695.20, 932,542.80 and 201,272.80 is: 301,909.20
Step by Step Solution
- Step 1: Write the proportion equation
621,695.20 : 932,542.80 = 201,272.80 : x - Step 2: Convert to fraction form
621,695.20/932,542.80 = 201,272.80/x - Step 3: Cross multiply
621,695.20x = 932,542.80 × 201,272.80 - Step 4: Simplify right side
621,695.20x = 187,695,500,475.84 - Step 5: Solve for x
x = 187,695,500,475.84/621,695.20 - Step 6: Final answer
x = 301,909.20
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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.