Finding the Fourth Proportional to 420,352.62, 580,099.40 and 239,090.62
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Solution
The fourth proportional to 420,352.62, 580,099.40 and 239,090.62 is: 329,952.33
Step by Step Solution
- Step 1: Write the proportion equation
420,352.62 : 580,099.40 = 239,090.62 : x - Step 2: Convert to fraction form
420,352.62/580,099.40 = 239,090.62/x - Step 3: Cross multiply
420,352.62x = 580,099.40 × 239,090.62 - Step 4: Simplify right side
420,352.62x = 138,696,325,207.63 - Step 5: Solve for x
x = 138,696,325,207.63/420,352.62 - Step 6: Final answer
x = 329,952.33
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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.