Finding the Fourth Proportional to 316,358.65, 436,574.97 and 173,118.70
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Solution
The fourth proportional to 316,358.65, 436,574.97 and 173,118.70 is: 238,903.82
Step by Step Solution
- Step 1: Write the proportion equation
316,358.65 : 436,574.97 = 173,118.70 : x - Step 2: Convert to fraction form
316,358.65/436,574.97 = 173,118.70/x - Step 3: Cross multiply
316,358.65x = 436,574.97 × 173,118.70 - Step 4: Simplify right side
316,358.65x = 75,579,290,167.50 - Step 5: Solve for x
x = 75,579,290,167.50/316,358.65 - Step 6: Final answer
x = 238,903.82
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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.