Finding the Fourth Proportional to 317,871.02, 438,670.12 and 174,634.68
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Solution
The fourth proportional to 317,871.02, 438,670.12 and 174,634.68 is: 241,000.32
Step by Step Solution
- Step 1: Write the proportion equation
317,871.02 : 438,670.12 = 174,634.68 : x - Step 2: Convert to fraction form
317,871.02/438,670.12 = 174,634.68/x - Step 3: Cross multiply
317,871.02x = 438,670.12 × 174,634.68 - Step 4: Simplify right side
317,871.02x = 76,607,016,031.76 - Step 5: Solve for x
x = 76,607,016,031.76/317,871.02 - Step 6: Final answer
x = 241,000.32
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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.