Finding the Fourth Proportional to 350,860.80, 526,291.20 and 129,331.20
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Solution
The fourth proportional to 350,860.80, 526,291.20 and 129,331.20 is: 193,996.80
Step by Step Solution
- Step 1: Write the proportion equation
350,860.80 : 526,291.20 = 129,331.20 : x - Step 2: Convert to fraction form
350,860.80/526,291.20 = 129,331.20/x - Step 3: Cross multiply
350,860.80x = 526,291.20 × 129,331.20 - Step 4: Simplify right side
350,860.80x = 68,065,872,445.44 - Step 5: Solve for x
x = 68,065,872,445.44/350,860.80 - Step 6: Final answer
x = 193,996.80
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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.