Finding the Fourth Proportional to 318,083.68, 438,955.86 and 174,840.67
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Solution
The fourth proportional to 318,083.68, 438,955.86 and 174,840.67 is: 241,280.33
Step by Step Solution
- Step 1: Write the proportion equation
318,083.68 : 438,955.86 = 174,840.67 : x - Step 2: Convert to fraction form
318,083.68/438,955.86 = 174,840.67/x - Step 3: Cross multiply
318,083.68x = 438,955.86 × 174,840.67 - Step 4: Simplify right side
318,083.68x = 76,747,336,662.83 - Step 5: Solve for x
x = 76,747,336,662.83/318,083.68 - Step 6: Final answer
x = 241,280.33
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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.