Finding the Fourth Proportional to 185,708.67, 256,518.35 and 153,573.09
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Solution
The fourth proportional to 185,708.67, 256,518.35 and 153,573.09 is: 212,129.65
Step by Step Solution
- Step 1: Write the proportion equation
185,708.67 : 256,518.35 = 153,573.09 : x - Step 2: Convert to fraction form
185,708.67/256,518.35 = 153,573.09/x - Step 3: Cross multiply
185,708.67x = 256,518.35 × 153,573.09 - Step 4: Simplify right side
185,708.67x = 39,394,315,651.20 - Step 5: Solve for x
x = 39,394,315,651.20/185,708.67 - Step 6: Final answer
x = 212,129.65
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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.