Finding the Fourth Proportional to 361,615.80, 542,423.70 and 98,959.80
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Solution
The fourth proportional to 361,615.80, 542,423.70 and 98,959.80 is: 148,439.70
Step by Step Solution
- Step 1: Write the proportion equation
361,615.80 : 542,423.70 = 98,959.80 : x - Step 2: Convert to fraction form
361,615.80/542,423.70 = 98,959.80/x - Step 3: Cross multiply
361,615.80x = 542,423.70 × 98,959.80 - Step 4: Simplify right side
361,615.80x = 53,678,140,867.26 - Step 5: Solve for x
x = 53,678,140,867.26/361,615.80 - Step 6: Final answer
x = 148,439.70
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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.