Finding the Fourth Proportional to 390,495.93, 585,756.77 and 134,325.92
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Solution
The fourth proportional to 390,495.93, 585,756.77 and 134,325.92 is: 201,493.31
Step by Step Solution
- Step 1: Write the proportion equation
390,495.93 : 585,756.77 = 134,325.92 : x - Step 2: Convert to fraction form
390,495.93/585,756.77 = 134,325.92/x - Step 3: Cross multiply
390,495.93x = 585,756.77 × 134,325.92 - Step 4: Simplify right side
390,495.93x = 78,682,317,026.48 - Step 5: Solve for x
x = 78,682,317,026.48/390,495.93 - Step 6: Final answer
x = 201,493.31
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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.