Finding the Fourth Proportional to 219,023.75, 302,252.78 and 118,421.75
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Solution
The fourth proportional to 219,023.75, 302,252.78 and 118,421.75 is: 163,422.02
Step by Step Solution
- Step 1: Write the proportion equation
219,023.75 : 302,252.78 = 118,421.75 : x - Step 2: Convert to fraction form
219,023.75/302,252.78 = 118,421.75/x - Step 3: Cross multiply
219,023.75x = 302,252.78 × 118,421.75 - Step 4: Simplify right side
219,023.75x = 35,793,303,149.97 - Step 5: Solve for x
x = 35,793,303,149.97/219,023.75 - Step 6: Final answer
x = 163,422.02
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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.