Finding the Fourth Proportional to 317,455.62, 438,094.13 and 174,228.99
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Solution
The fourth proportional to 317,455.62, 438,094.13 and 174,228.99 is: 240,438.95
Step by Step Solution
- Step 1: Write the proportion equation
317,455.62 : 438,094.13 = 174,228.99 : x - Step 2: Convert to fraction form
317,455.62/438,094.13 = 174,228.99/x - Step 3: Cross multiply
317,455.62x = 438,094.13 × 174,228.99 - Step 4: Simplify right side
317,455.62x = 76,328,696,923.68 - Step 5: Solve for x
x = 76,328,696,923.68/317,455.62 - Step 6: Final answer
x = 240,438.95
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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.