Finding the Fourth Proportional to 454,753.80, 682,130.70 and 139,169.70
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Solution
The fourth proportional to 454,753.80, 682,130.70 and 139,169.70 is: 208,754.55
Step by Step Solution
- Step 1: Write the proportion equation
454,753.80 : 682,130.70 = 139,169.70 : x - Step 2: Convert to fraction form
454,753.80/682,130.70 = 139,169.70/x - Step 3: Cross multiply
454,753.80x = 682,130.70 × 139,169.70 - Step 4: Simplify right side
454,753.80x = 94,931,924,879.79 - Step 5: Solve for x
x = 94,931,924,879.79/454,753.80 - Step 6: Final answer
x = 208,754.55
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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.