Finding the Fourth Proportional to 258,340.24, 387,499.84 and 89,899.12
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Solution
The fourth proportional to 258,340.24, 387,499.84 and 89,899.12 is: 134,845.02
Step by Step Solution
- Step 1: Write the proportion equation
258,340.24 : 387,499.84 = 89,899.12 : x - Step 2: Convert to fraction form
258,340.24/387,499.84 = 89,899.12/x - Step 3: Cross multiply
258,340.24x = 387,499.84 × 89,899.12 - Step 4: Simplify right side
258,340.24x = 34,835,894,616.14 - Step 5: Solve for x
x = 34,835,894,616.14/258,340.24 - Step 6: Final answer
x = 134,845.02
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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.