Finding the Fourth Proportional to 318,359.62, 439,351.05 and 175,117.06
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Solution
The fourth proportional to 318,359.62, 439,351.05 and 175,117.06 is: 241,669.67
Step by Step Solution
- Step 1: Write the proportion equation
318,359.62 : 439,351.05 = 175,117.06 : x - Step 2: Convert to fraction form
318,359.62/439,351.05 = 175,117.06/x - Step 3: Cross multiply
318,359.62x = 439,351.05 × 175,117.06 - Step 4: Simplify right side
318,359.62x = 76,937,864,183.91 - Step 5: Solve for x
x = 76,937,864,183.91/318,359.62 - Step 6: Final answer
x = 241,669.67
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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.