Finding the Fourth Proportional to 361,621.80, 542,432.70 and 98,965.80
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Solution
The fourth proportional to 361,621.80, 542,432.70 and 98,965.80 is: 148,448.70
Step by Step Solution
- Step 1: Write the proportion equation
361,621.80 : 542,432.70 = 98,965.80 : x - Step 2: Convert to fraction form
361,621.80/542,432.70 = 98,965.80/x - Step 3: Cross multiply
361,621.80x = 542,432.70 × 98,965.80 - Step 4: Simplify right side
361,621.80x = 53,682,286,101.66 - Step 5: Solve for x
x = 53,682,286,101.66/361,621.80 - Step 6: Final answer
x = 148,448.70
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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.