Finding the Fourth Proportional to 318,438.23, 439,445.55 and 175,207.19
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Solution
The fourth proportional to 318,438.23, 439,445.55 and 175,207.19 is: 241,786.36
Step by Step Solution
- Step 1: Write the proportion equation
318,438.23 : 439,445.55 = 175,207.19 : x - Step 2: Convert to fraction form
318,438.23/439,445.55 = 175,207.19/x - Step 3: Cross multiply
318,438.23x = 439,445.55 × 175,207.19 - Step 4: Simplify right side
318,438.23x = 76,994,017,776.28 - Step 5: Solve for x
x = 76,994,017,776.28/318,438.23 - Step 6: Final answer
x = 241,786.36
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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.