Finding the Fourth Proportional to 318,970.58, 440,179.81 and 173,775.65
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Solution
The fourth proportional to 318,970.58, 440,179.81 and 173,775.65 is: 239,810.62
Step by Step Solution
- Step 1: Write the proportion equation
318,970.58 : 440,179.81 = 173,775.65 : x - Step 2: Convert to fraction form
318,970.58/440,179.81 = 173,775.65/x - Step 3: Cross multiply
318,970.58x = 440,179.81 × 173,775.65 - Step 4: Simplify right side
318,970.58x = 76,492,529,964.29 - Step 5: Solve for x
x = 76,492,529,964.29/318,970.58 - Step 6: Final answer
x = 239,810.62
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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.