Finding the Fourth Proportional to 318,430.22, 439,433.69 and 175,187.19
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Solution
The fourth proportional to 318,430.22, 439,433.69 and 175,187.19 is: 241,758.31
Step by Step Solution
- Step 1: Write the proportion equation
318,430.22 : 439,433.69 = 175,187.19 : x - Step 2: Convert to fraction form
318,430.22/439,433.69 = 175,187.19/x - Step 3: Cross multiply
318,430.22x = 439,433.69 × 175,187.19 - Step 4: Simplify right side
318,430.22x = 76,983,153,342.43 - Step 5: Solve for x
x = 76,983,153,342.43/318,430.22 - Step 6: Final answer
x = 241,758.31
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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.