Finding the Fourth Proportional to 220,613.70, 330,920.55 and 185,621.70
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Solution
The fourth proportional to 220,613.70, 330,920.55 and 185,621.70 is: 278,432.55
Step by Step Solution
- Step 1: Write the proportion equation
220,613.70 : 330,920.55 = 185,621.70 : x - Step 2: Convert to fraction form
220,613.70/330,920.55 = 185,621.70/x - Step 3: Cross multiply
220,613.70x = 330,920.55 × 185,621.70 - Step 4: Simplify right side
220,613.70x = 61,426,035,055.94 - Step 5: Solve for x
x = 61,426,035,055.94/220,613.70 - Step 6: Final answer
x = 278,432.55
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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.