Finding the Fourth Proportional to 245,630.20, 368,445.30 and 133,655.80
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Solution
The fourth proportional to 245,630.20, 368,445.30 and 133,655.80 is: 200,483.70
Step by Step Solution
- Step 1: Write the proportion equation
245,630.20 : 368,445.30 = 133,655.80 : x - Step 2: Convert to fraction form
245,630.20/368,445.30 = 133,655.80/x - Step 3: Cross multiply
245,630.20x = 368,445.30 × 133,655.80 - Step 4: Simplify right side
245,630.20x = 49,244,851,327.74 - Step 5: Solve for x
x = 49,244,851,327.74/245,630.20 - Step 6: Final answer
x = 200,483.70
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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.