Finding the Fourth Proportional to 361,863.20, 542,794.80 and 99,207.20
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Solution
The fourth proportional to 361,863.20, 542,794.80 and 99,207.20 is: 148,810.80
Step by Step Solution
- Step 1: Write the proportion equation
361,863.20 : 542,794.80 = 99,207.20 : x - Step 2: Convert to fraction form
361,863.20/542,794.80 = 99,207.20/x - Step 3: Cross multiply
361,863.20x = 542,794.80 × 99,207.20 - Step 4: Simplify right side
361,863.20x = 53,849,152,282.56 - Step 5: Solve for x
x = 53,849,152,282.56/361,863.20 - Step 6: Final answer
x = 148,810.80
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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.