Finding the Fourth Proportional to 317,893.68, 438,671.16 and 174,659.76
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Solution
The fourth proportional to 317,893.68, 438,671.16 and 174,659.76 is: 241,018.32
Step by Step Solution
- Step 1: Write the proportion equation
317,893.68 : 438,671.16 = 174,659.76 : x - Step 2: Convert to fraction form
317,893.68/438,671.16 = 174,659.76/x - Step 3: Cross multiply
317,893.68x = 438,671.16 × 174,659.76 - Step 4: Simplify right side
317,893.68x = 76,618,199,524.52 - Step 5: Solve for x
x = 76,618,199,524.52/317,893.68 - Step 6: Final answer
x = 241,018.32
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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.