Finding the Fourth Proportional to 338,455.44, 507,599.91 and 138,832.74
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Solution
The fourth proportional to 338,455.44, 507,599.91 and 138,832.74 is: 208,214.96
Step by Step Solution
- Step 1: Write the proportion equation
338,455.44 : 507,599.91 = 138,832.74 : x - Step 2: Convert to fraction form
338,455.44/507,599.91 = 138,832.74/x - Step 3: Cross multiply
338,455.44x = 507,599.91 × 138,832.74 - Step 4: Simplify right side
338,455.44x = 70,471,486,329.05 - Step 5: Solve for x
x = 70,471,486,329.05/338,455.44 - Step 6: Final answer
x = 208,214.96
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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.