Finding the Fourth Proportional to 408,081.80, 612,122.70 and 158,763.80
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Solution
The fourth proportional to 408,081.80, 612,122.70 and 158,763.80 is: 238,145.70
Step by Step Solution
- Step 1: Write the proportion equation
408,081.80 : 612,122.70 = 158,763.80 : x - Step 2: Convert to fraction form
408,081.80/612,122.70 = 158,763.80/x - Step 3: Cross multiply
408,081.80x = 612,122.70 × 158,763.80 - Step 4: Simplify right side
408,081.80x = 97,182,925,918.26 - Step 5: Solve for x
x = 97,182,925,918.26/408,081.80 - Step 6: Final answer
x = 238,145.70
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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.