Finding the Fourth Proportional to 315,785.09, 435,783.51 and 170,590.91
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Solution
The fourth proportional to 315,785.09, 435,783.51 and 170,590.91 is: 235,415.50
Step by Step Solution
- Step 1: Write the proportion equation
315,785.09 : 435,783.51 = 170,590.91 : x - Step 2: Convert to fraction form
315,785.09/435,783.51 = 170,590.91/x - Step 3: Cross multiply
315,785.09x = 435,783.51 × 170,590.91 - Step 4: Simplify right side
315,785.09x = 74,340,703,354.98 - Step 5: Solve for x
x = 74,340,703,354.98/315,785.09 - Step 6: Final answer
x = 235,415.50
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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.