Finding the Fourth Proportional to 173,338.97, 239,281.45 and 105,377.65
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Solution
The fourth proportional to 173,338.97, 239,281.45 and 105,377.65 is: 145,465.95
Step by Step Solution
- Step 1: Write the proportion equation
173,338.97 : 239,281.45 = 105,377.65 : x - Step 2: Convert to fraction form
173,338.97/239,281.45 = 105,377.65/x - Step 3: Cross multiply
173,338.97x = 239,281.45 × 105,377.65 - Step 4: Simplify right side
173,338.97x = 25,214,917,751.24 - Step 5: Solve for x
x = 25,214,917,751.24/173,338.97 - Step 6: Final answer
x = 145,465.95
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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.