Finding the Fourth Proportional to 621,620.20, 932,430.30 and 201,197.80
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Solution
The fourth proportional to 621,620.20, 932,430.30 and 201,197.80 is: 301,796.70
Step by Step Solution
- Step 1: Write the proportion equation
621,620.20 : 932,430.30 = 201,197.80 : x - Step 2: Convert to fraction form
621,620.20/932,430.30 = 201,197.80/x - Step 3: Cross multiply
621,620.20x = 932,430.30 × 201,197.80 - Step 4: Simplify right side
621,620.20x = 187,602,925,013.34 - Step 5: Solve for x
x = 187,602,925,013.34/621,620.20 - Step 6: Final answer
x = 301,796.70
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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.