Finding the Fourth Proportional to 348,129.60, 522,367.20 and 137,774.40
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Solution
The fourth proportional to 348,129.60, 522,367.20 and 137,774.40 is: 206,729.99
Step by Step Solution
- Step 1: Write the proportion equation
348,129.60 : 522,367.20 = 137,774.40 : x - Step 2: Convert to fraction form
348,129.60/522,367.20 = 137,774.40/x - Step 3: Cross multiply
348,129.60x = 522,367.20 × 137,774.40 - Step 4: Simplify right side
348,129.60x = 71,968,827,559.68 - Step 5: Solve for x
x = 71,968,827,559.68/348,129.60 - Step 6: Final answer
x = 206,729.99
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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.