Finding the Fourth Proportional to 318,432.36, 477,632.96 and 118,737.17
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Solution
The fourth proportional to 318,432.36, 477,632.96 and 118,737.17 is: 178,099.95
Step by Step Solution
- Step 1: Write the proportion equation
318,432.36 : 477,632.96 = 118,737.17 : x - Step 2: Convert to fraction form
318,432.36/477,632.96 = 118,737.17/x - Step 3: Cross multiply
318,432.36x = 477,632.96 × 118,737.17 - Step 4: Simplify right side
318,432.36x = 56,712,785,969.12 - Step 5: Solve for x
x = 56,712,785,969.12/318,432.36 - Step 6: Final answer
x = 178,099.95
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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.