Finding the Fourth Proportional to 316,542.61, 436,830.08 and 173,315.98
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Solution
The fourth proportional to 316,542.61, 436,830.08 and 173,315.98 is: 239,176.75
Step by Step Solution
- Step 1: Write the proportion equation
316,542.61 : 436,830.08 = 173,315.98 : x - Step 2: Convert to fraction form
316,542.61/436,830.08 = 173,315.98/x - Step 3: Cross multiply
316,542.61x = 436,830.08 × 173,315.98 - Step 4: Simplify right side
316,542.61x = 75,709,633,408.68 - Step 5: Solve for x
x = 75,709,633,408.68/316,542.61 - Step 6: Final answer
x = 239,176.75
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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.