Finding the Fourth Proportional to 318,627.80, 477,941.70 and 97,011.80
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Solution
The fourth proportional to 318,627.80, 477,941.70 and 97,011.80 is: 145,517.70
Step by Step Solution
- Step 1: Write the proportion equation
318,627.80 : 477,941.70 = 97,011.80 : x - Step 2: Convert to fraction form
318,627.80/477,941.70 = 97,011.80/x - Step 3: Cross multiply
318,627.80x = 477,941.70 × 97,011.80 - Step 4: Simplify right side
318,627.80x = 46,365,984,612.06 - Step 5: Solve for x
x = 46,365,984,612.06/318,627.80 - Step 6: Final answer
x = 145,517.70
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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.