Finding the Fourth Proportional to 427,532.96, 640,803.72 and 161,122.88
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Solution
The fourth proportional to 427,532.96, 640,803.72 and 161,122.88 is: 241,497.50
Step by Step Solution
- Step 1: Write the proportion equation
427,532.96 : 640,803.72 = 161,122.88 : x - Step 2: Convert to fraction form
427,532.96/640,803.72 = 161,122.88/x - Step 3: Cross multiply
427,532.96x = 640,803.72 × 161,122.88 - Step 4: Simplify right side
427,532.96x = 103,248,140,881.11 - Step 5: Solve for x
x = 103,248,140,881.11/427,532.96 - Step 6: Final answer
x = 241,497.50
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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.