Finding the Fourth Proportional to 260,345.68, 389,449.32 and 207,857.68
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Solution
The fourth proportional to 260,345.68, 389,449.32 and 207,857.68 is: 310,932.88
Step by Step Solution
- Step 1: Write the proportion equation
260,345.68 : 389,449.32 = 207,857.68 : x - Step 2: Convert to fraction form
260,345.68/389,449.32 = 207,857.68/x - Step 3: Cross multiply
260,345.68x = 389,449.32 × 207,857.68 - Step 4: Simplify right side
260,345.68x = 80,950,032,132.78 - Step 5: Solve for x
x = 80,950,032,132.78/260,345.68 - Step 6: Final answer
x = 310,932.88
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1.5x scale
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.