Finding the Fourth Proportional to 298,420.63, 411,807.85 and 162,451.75
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Solution
The fourth proportional to 298,420.63, 411,807.85 and 162,451.75 is: 224,176.55
Step by Step Solution
- Step 1: Write the proportion equation
298,420.63 : 411,807.85 = 162,451.75 : x - Step 2: Convert to fraction form
298,420.63/411,807.85 = 162,451.75/x - Step 3: Cross multiply
298,420.63x = 411,807.85 × 162,451.75 - Step 4: Simplify right side
298,420.63x = 66,898,905,896.24 - Step 5: Solve for x
x = 66,898,905,896.24/298,420.63 - Step 6: Final answer
x = 224,176.55
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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.