Finding the Fourth Proportional to 216,023.20, 298,032.48 and 135,454.08
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Solution
The fourth proportional to 216,023.20, 298,032.48 and 135,454.08 is: 186,876.76
Step by Step Solution
- Step 1: Write the proportion equation
216,023.20 : 298,032.48 = 135,454.08 : x - Step 2: Convert to fraction form
216,023.20/298,032.48 = 135,454.08/x - Step 3: Cross multiply
216,023.20x = 298,032.48 × 135,454.08 - Step 4: Simplify right side
216,023.20x = 40,369,715,388.52 - Step 5: Solve for x
x = 40,369,715,388.52/216,023.20 - Step 6: Final answer
x = 186,876.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.