Finding the Fourth Proportional to 330,135.80, 495,203.70 and 108,519.80
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Solution
The fourth proportional to 330,135.80, 495,203.70 and 108,519.80 is: 162,779.70
Step by Step Solution
- Step 1: Write the proportion equation
330,135.80 : 495,203.70 = 108,519.80 : x - Step 2: Convert to fraction form
330,135.80/495,203.70 = 108,519.80/x - Step 3: Cross multiply
330,135.80x = 495,203.70 × 108,519.80 - Step 4: Simplify right side
330,135.80x = 53,739,406,483.26 - Step 5: Solve for x
x = 53,739,406,483.26/330,135.80 - Step 6: Final answer
x = 162,779.70
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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.