Finding the Fourth Proportional to 418,195.28, 627,358.56 and 249,905.68
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Solution
The fourth proportional to 418,195.28, 627,358.56 and 249,905.68 is: 374,897.75
Step by Step Solution
- Step 1: Write the proportion equation
418,195.28 : 627,358.56 = 249,905.68 : x - Step 2: Convert to fraction form
418,195.28/627,358.56 = 249,905.68/x - Step 3: Cross multiply
418,195.28x = 627,358.56 × 249,905.68 - Step 4: Simplify right side
418,195.28x = 156,780,467,540.62 - Step 5: Solve for x
x = 156,780,467,540.62/418,195.28 - Step 6: Final answer
x = 374,897.75
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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.