Finding the Fourth Proportional to 338,735.32, 507,660.05 and 138,821.65
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Solution
The fourth proportional to 338,735.32, 507,660.05 and 138,821.65 is: 208,050.95
Step by Step Solution
- Step 1: Write the proportion equation
338,735.32 : 507,660.05 = 138,821.65 : x - Step 2: Convert to fraction form
338,735.32/507,660.05 = 138,821.65/x - Step 3: Cross multiply
338,735.32x = 507,660.05 × 138,821.65 - Step 4: Simplify right side
338,735.32x = 70,474,206,702.18 - Step 5: Solve for x
x = 70,474,206,702.18/338,735.32 - Step 6: Final answer
x = 208,050.95
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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.