Finding the Fourth Proportional to 317,621.66, 438,318.74 and 174,390.98
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Solution
The fourth proportional to 317,621.66, 438,318.74 and 174,390.98 is: 240,660.02
Step by Step Solution
- Step 1: Write the proportion equation
317,621.66 : 438,318.74 = 174,390.98 : x - Step 2: Convert to fraction form
317,621.66/438,318.74 = 174,390.98/x - Step 3: Cross multiply
317,621.66x = 438,318.74 × 174,390.98 - Step 4: Simplify right side
317,621.66x = 76,438,832,865.35 - Step 5: Solve for x
x = 76,438,832,865.35/317,621.66 - Step 6: Final answer
x = 240,660.02
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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.