Finding the Fourth Proportional to 339,079.60, 507,442.08 and 210,943.28
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Solution
The fourth proportional to 339,079.60, 507,442.08 and 210,943.28 is: 315,682.50
Step by Step Solution
- Step 1: Write the proportion equation
339,079.60 : 507,442.08 = 210,943.28 : x - Step 2: Convert to fraction form
339,079.60/507,442.08 = 210,943.28/x - Step 3: Cross multiply
339,079.60x = 507,442.08 × 210,943.28 - Step 4: Simplify right side
339,079.60x = 107,041,496,765.22 - Step 5: Solve for x
x = 107,041,496,765.22/339,079.60 - Step 6: Final answer
x = 315,682.50
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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.