Finding the Fourth Proportional to 352,615.12, 528,740.28 and 142,195.92
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Solution
The fourth proportional to 352,615.12, 528,740.28 and 142,195.92 is: 213,220.33
Step by Step Solution
- Step 1: Write the proportion equation
352,615.12 : 528,740.28 = 142,195.92 : x - Step 2: Convert to fraction form
352,615.12/528,740.28 = 142,195.92/x - Step 3: Cross multiply
352,615.12x = 528,740.28 × 142,195.92 - Step 4: Simplify right side
352,615.12x = 75,184,710,555.66 - Step 5: Solve for x
x = 75,184,710,555.66/352,615.12 - Step 6: Final answer
x = 213,220.33
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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.