Finding the Fourth Proportional to 339,241.28, 508,848.96 and 139,506.08
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Solution
The fourth proportional to 339,241.28, 508,848.96 and 139,506.08 is: 209,253.79
Step by Step Solution
- Step 1: Write the proportion equation
339,241.28 : 508,848.96 = 139,506.08 : x - Step 2: Convert to fraction form
339,241.28/508,848.96 = 139,506.08/x - Step 3: Cross multiply
339,241.28x = 508,848.96 × 139,506.08 - Step 4: Simplify right side
339,241.28x = 70,987,523,721.68 - Step 5: Solve for x
x = 70,987,523,721.68/339,241.28 - Step 6: Final answer
x = 209,253.79
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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.