Finding the Fourth Proportional to 317,263.60, 437,860.36 and 189,939.12
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Solution
The fourth proportional to 317,263.60, 437,860.36 and 189,939.12 is: 262,137.89
Step by Step Solution
- Step 1: Write the proportion equation
317,263.60 : 437,860.36 = 189,939.12 : x - Step 2: Convert to fraction form
317,263.60/437,860.36 = 189,939.12/x - Step 3: Cross multiply
317,263.60x = 437,860.36 × 189,939.12 - Step 4: Simplify right side
317,263.60x = 83,166,811,461.28 - Step 5: Solve for x
x = 83,166,811,461.28/317,263.60 - Step 6: Final answer
x = 262,137.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.