Finding the Fourth Proportional to 317,367.99, 437,968.40 and 174,129.08
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Solution
The fourth proportional to 317,367.99, 437,968.40 and 174,129.08 is: 240,298.44
Step by Step Solution
- Step 1: Write the proportion equation
317,367.99 : 437,968.40 = 174,129.08 : x - Step 2: Convert to fraction form
317,367.99/437,968.40 = 174,129.08/x - Step 3: Cross multiply
317,367.99x = 437,968.40 × 174,129.08 - Step 4: Simplify right side
317,367.99x = 76,263,031,500.58 - Step 5: Solve for x
x = 76,263,031,500.58/317,367.99 - Step 6: Final answer
x = 240,298.44
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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.