Finding the Fourth Proportional to 318,118.99, 477,099.78 and 190,070.23
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Solution
The fourth proportional to 318,118.99, 477,099.78 and 190,070.23 is: 285,058.32
Step by Step Solution
- Step 1: Write the proportion equation
318,118.99 : 477,099.78 = 190,070.23 : x - Step 2: Convert to fraction form
318,118.99/477,099.78 = 190,070.23/x - Step 3: Cross multiply
318,118.99x = 477,099.78 × 190,070.23 - Step 4: Simplify right side
318,118.99x = 90,682,464,917.55 - Step 5: Solve for x
x = 90,682,464,917.55/318,118.99 - Step 6: Final answer
x = 285,058.32
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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.