Finding the Fourth Proportional to 118,904.49, 178,354.94 and 28,948.05
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Solution
The fourth proportional to 118,904.49, 178,354.94 and 28,948.05 is: 43,421.64
Step by Step Solution
- Step 1: Write the proportion equation
118,904.49 : 178,354.94 = 28,948.05 : x - Step 2: Convert to fraction form
118,904.49/178,354.94 = 28,948.05/x - Step 3: Cross multiply
118,904.49x = 178,354.94 × 28,948.05 - Step 4: Simplify right side
118,904.49x = 5,163,027,576.13 - Step 5: Solve for x
x = 5,163,027,576.13/118,904.49 - Step 6: Final answer
x = 43,421.64
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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.