Finding the Fourth Proportional to 387,336.36, 580,479.12 and 187,258.26
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Solution
The fourth proportional to 387,336.36, 580,479.12 and 187,258.26 is: 280,633.38
Step by Step Solution
- Step 1: Write the proportion equation
387,336.36 : 580,479.12 = 187,258.26 : x - Step 2: Convert to fraction form
387,336.36/580,479.12 = 187,258.26/x - Step 3: Cross multiply
387,336.36x = 580,479.12 × 187,258.26 - Step 4: Simplify right side
387,336.36x = 108,699,509,977.53 - Step 5: Solve for x
x = 108,699,509,977.53/387,336.36 - Step 6: Final answer
x = 280,633.38
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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.