Finding the Fourth Proportional to 272,641.64, 408,956.58 and 72,961.99
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Solution
The fourth proportional to 272,641.64, 408,956.58 and 72,961.99 is: 109,441.41
Step by Step Solution
- Step 1: Write the proportion equation
272,641.64 : 408,956.58 = 72,961.99 : x - Step 2: Convert to fraction form
272,641.64/408,956.58 = 72,961.99/x - Step 3: Cross multiply
272,641.64x = 408,956.58 × 72,961.99 - Step 4: Simplify right side
272,641.64x = 29,838,284,878.00 - Step 5: Solve for x
x = 29,838,284,878.00/272,641.64 - Step 6: Final answer
x = 109,441.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.